Constitutivism is the general view that some class of normative standards can be derived from the constitutive features of agency. The constitutivist claims that all persons, as agents, are bound by certain norms simply because they are agents. The view aims to counter sceptical worries about the bindingness of norms, moral or otherwise. I articulate a Hegelian version of constitutivism, according to which adherence to norms of recognition is both necessary to know what one has done in the past and to guide future action. A person cannot have a coherent conception of themselves as an agent if they do not abide by recognitive norms. Many existing versions of constitutivism promise too much. It is unlikely that we can derive all of morality from the constitutive features of agency. Hegel, however, allows us to see that the foundations of morality can be gleaned from the nature of action.

Metaphysics is the science of what is as such. And what is is the formal object of thought; it is what is thought as such. Hence metaphysics, the science of being, is the self-clarification of thought. The original moment of metaphysics is Parmenides’ pronouncement that being and thinking are the same: ‘τὸ γὰρ αὐτὸ νοεῖν ἐστίν τε καὶ εἶναι’. The moment is recaptured when Hegel writes that, in the idea of being, thought embraces itself in its absolute abstraction. So this is the concern of metaphysics: thinking and being. That concern was central to a certain tradition of analytic philosophy, originating in Frege and Wittgenstein. Thus books belonging in this tradition bear titles like Word and Object, Mind and World. A late book in this tradition is Peacocke’s The Primacy of Metaphysics. It opposes itself to McDowell’s Mind and World and Dummett’s ‘What is a Theory of Meaning?’ In what follows I want to discuss that opposition. I shall do so in a way that, I hope, will show a reader of Hegel that it may be fruitful, in one’s attempts to think about thinking and being, to engage the said analytic tradition. In this qualified way, my contribution will bring today’s metaphysics into communication with Hegel’s philosophy, revealing, hopefully, the relevance of the former.

High-energy mixing offers a novel approach to enhancing the efficiency of Portland cements that incorporate supplementary cementitious materials regarding the hydration time and compressive strength formation. This research focused on monitoring the formation and degradation of mineral phases, as well as the compressive strength development and heat flow of mortars, within the first 48 hours, using clinker-efficient Portland composite cements. This study involved mixing Portland cement containing 20 wt% amorphous blast furnace slag and 10 wt% limestone with water using three different high-energy mixing techniques. The results demonstrated that the compressive strength of the Portland composite cements was comparable to that of ordinary Portland cement within a 48-hour period. Rietveld refinement was employed to track the formation of portlandite and the sum of the amorphous phases quartz and tobermorite, as well as the degradation of tricalcium silicate. The decline in tricalcium silicate and the formation of Portlandite showed a significant increase in reaction speed due to high-energy mixing. Additionally, a reduction in calcite content was observed, suggesting that calcium carbonate contributes to the enhanced compressive strength observed within the first 48 hours.

This article examines how the Australian Liberal-National Coalition party’s (LNP) proposed working from home policy, which would have mandated a return to office for public servants, contributed to a dramatic electoral loss. The 2025 Australian federal election delivered an unexpected landslide victory to the incumbent Australian Labor Party, defying polling predictions that had shown the LNP leading by 10 percentage points just months earlier. We argue that this policy proposal violated an evolving social contract that encompasses hybrid working as a fundamental employment right. Through analysis of media coverage, polling data, and post-election commentary, we demonstrate that the LNP’s failure to recognise this shift in social expectations regarding work arrangements played a significant role in their electoral defeat. Our findings suggest that hybrid working has become institutionalised as part of Australia’s evolving social contract, with implications for future political discourse and employment policy.

As increasing numbers of students disclose mental health conditions, this study is the first to examine mental health status as a critical variable in foreign language anxiety research. Using a mixed-methods approach and drawing on data from 262 languages students at the Open University, it systematically compares foreign language speaking anxiety (FLSA) experiences between students with and without declared mental health conditions. Vocabulary retrieval emerged as the primary anxiety trigger common to all learners, however, significant distinctions emerged: students without mental health conditions expressed more academic-focused anxieties, whereas those with mental health conditions faced confidence and identity-based barriers. Students with mental health challenges are less likely to speak spontaneously and undertake spoken assessments, often opting to avoid online synchronous sessions entirely, requiring different coping strategies. The findings are analysed through a Universal Learning Design lens and reveal the need for tailored support and innovative pedagogical solutions, including AI-powered practice environments and self-compassion interventions specifically designed for online language learning contexts, to address the emotional barriers faced by students with mental health conditions. The study offers broader implications for inclusive (language) course design and learner engagement.

Body composition (BC) offers essential insights into the physical condition and performance capacity of athletes. Several factors can influence athletes’ BC, such as nutrition, which can improve lean mass (LM) and body fat percentage (%BF). This longitudinal observational study aimed to investigate the factors influencing BC in professional female football players, including hormones, dietary habits and physical activity, as these are relevant to their sport performance and health. Data related to dietary habits, dual-energy X-ray absorptiometry measurements, serum hormones, menstruation and global position system metrics were collected in November 2023 and late March 2024 from thirty-eight female football players from the Real Sociedad team. Of the thirty-eight players enrolled, thirty-five completed all assessments and were included in the final analyses. Spearman correlations and linear regression analyses were performed. Statistically significant models were executed for %BF and LM (adjusted R2 = 0·55 and 0·47, respectively). For %BF, total testosterone had a positive influence, while high-speed running per minute, follicle-stimulating hormone, distance covered per minute, prolactin and fat intake influenced negatively. In the LM model, positive associations were total testosterone, progesterone, age, adrenocorticotropic hormone and carbohydrate intake, while insulin, distance covered per minute and sex hormone binding globulin had negative associations. These results emphasise the complexity of the factors influencing BC in female football players. Personalising and periodising carbohydrate intake and monitoring training loads are crucial to prevent adverse effects such as higher %BF and muscle catabolism. Establishing healthy nutritional practices is essential for long-term health and performance.

This paper outlines the experience of establishing a partnership for clinical services and academic training across two very different countries: Zambia and Ireland. Drawing upon the experience of setting up other similar international partnerships, the process of understanding the two very different cultural and clinical contexts has developed collaboratively over the course of the past 2 years, and has resulted in valuable insights and joint working. In line with local priorities, the Zambian colleagues in the partnership have prioritised the support for postgraduate training in psychiatry to enable the expansion of services, and allow greater population access. In particular, there is evidence of unmet need in the areas of substance use psychiatry, and child and adolescent psychiatry.

The collaboration will increase cultural awareness among psychiatrists and trainees in Ireland and deepen their knowledge and understanding of international psychiatry. This programme is mutually beneficial and has the potential to greatly improve relationships between the mental health service providers of the two nations.

The global syndemic of obesity, undernutrition and climate change – three interconnected challenges – threatens both human and planetary health. This review focuses on one critical intersection: older populations living with overweight and obesity in the context of sustainable nutrition. Obesity and sarcopenia, particularly the co-occurrence called sarcopenic obesity, are often overlooked until the onset or exacerbation of other diseases necessitates secondary care. Preventing sarcopenic obesity requires reducing excess fat mass while preserving muscle mass and function. This involves lowering total energy intake while ensuring adequate protein intake in terms of quantity, quality and distribution, combined with physical activity, particularly resistance exercise. Short-term studies show that both the source and dose of dietary protein significantly influence muscle protein synthesis rates. Longer-term studies examining the impact of plant-based diets on muscle health in older adults with or without overweight or obesity remain limited. Animal protein have shown a modest advantage over most plant-based protein in supporting muscle mass. Qualitative studies suggest that emphasising both the health benefits and palatability of plant-based protein sources is key to promoting dietary changes in older adults. In older adults with obesity, it is challenging to combine energy restriction with higher protein intake, especially when protein sources are plant-based. To prevent and treat sarcopenic obesity in older adults and support planetary health, a shift toward more plant-based protein sources is required, while ensuring sufficient protein quantity and quality to preserve muscle health during weight loss.

This review aims to (1) provide an overview of research investigating the relationship between body composition, specifically fat-free mass (FFM) and fat mass (FM), appetite and energy intake (EI) and (2) to investigate potential mechanisms underlying these relationships, with a focus on ageing. Appetite and EI are influenced by complex, multifactorial pathways involving physiological, psychological, environmental, social and cultural factors. Early research investigating the association of body composition with appetite and EI focused on FM; however, the role of FFM in appetite control is gaining increasing attention. Studies have shown that FFM is positively associated with EI in younger populations, including infants, adolescents and adults. In contrast, FM appears to have no association or a weak inverse association with appetite/EI. However, research in older adults is limited, and the underlying mechanisms are not fully understood. It has been suggested that one way in which FFM may influence appetite and EI is by impacting resting metabolic rate (RMR). FFM, which includes metabolically active tissues including skeletal muscle and organs, represents the largest determinant of RMR and therefore may influence appetite and EI by ensuring the energetic requirements of crucial tissue-organs and metabolic processes are reached. Given that declines in FFM and RMR are common with ageing, they may be possible targets for interventions aimed at improving appetite and EI. While current evidence in older adults supports a positive association between FFM and appetite, further longitudinal studies are needed to explore this relationship in different contexts, along with the underlying mechanisms.

Early modern European powers were beset by episodic unrest as they sought to consolidate their authority and build empires. We examine how growing state communication networks and the penetration of society impacted unrest by combining original and detailed parish-level data from pre-Revolutionary France on the expansion of the horse-post relay network with rebellion in this period. Using a staggered difference-in-differences framework, we find that new horse-post relays are associated with more local rebellion. We argue that the main mechanisms are the material consequences of state centralization. New horse-post relays are linked with more rebellion against state agents and associates—the military, police, tax collectors, and the judiciary—that conscripted civilians, enforced taxes and laws, and increasingly monopolized roads. Pre-existing state and administrative fragmentation also mediated this relationship. Our findings have implications for the scholarly understanding of the co-evolution of states and order.

This study examines the impact of climate change, defined as long-term changes in temperature and precipitation patterns due to natural and human factors, on women's employment in Burkina Faso, highlighting labour market participation and gender disparities. Using a static computable general equilibrium model calibrated with a gender-specific social accounting matrix, it evaluates two climate scenarios: a 2.4°C temperature increase and a 7.5 per cent decrease in precipitation by 2050. The results indicate that these climate shocks significantly reduce women's employment opportunities. The supply of paid labour for women may decrease by 3.9 per cent, with skilled women experiencing greater job losses than their unskilled counterparts. In rural areas, the domestic workload could increase by up to 0.28 per cent, further limiting women's labour market participation. These changes reinforce gender inequalities and contribute to a decline in real GDP. To counter these effects, investments in climate-resilient agriculture, water and energy infrastructure, and women's entrepreneurship are essential. Gender-responsive policies are needed to promote inclusive economic growth and reduce employment disparities.

We study how changes in a country’s administrative hierarchy affect development at the city level. We exploit the 1806 Napoleonic administrative reform implemented in the Kingdom of Naples as a historical experiment to assess whether district capitals endowed with supra-municipal administrative functions gained an urban development premium compared with non-capital cities. We find that district capitals recorded a population growth premium throughout the nineteenth century (1828–1911) and experienced higher industrialization both before and after the Italian unification (1861) compared with non-capital cities. We explain our results through mechanisms related to public goods provision and transport network accessibility.

Phenotypic plasticity refers to the capacity of an organism’s phenotype to vary in response to changes in environmental conditions, without any change in the individual genotype. Sea urchins (Echinoidea) are well-known for their morphological and behavioural plasticity in response to changing habitats or trophic environments. Phenotypic plasticity has been little studied in directly developing species, in which low levels of phenotypic plasticity are usually expected as a consequence of high levels of genetic differentiation among populations and local genetic adaptation. In the present work, we report a significant plasticity in the direct-developing and brooding sub-Antarctic species Ctenocidaris (Eurocidaris) nutrix (Echinoidea, Cidaridae) through morphological and trophic analyses of gut contents and δ13C and δ15N isotopic compositions. Molecular data (COI mtDNA) confirm that the different phenotypes of C. nutrix, the short-spined C. nutrix nutrix and the long-spined C. nutrix longispina, are a single species restricted to sub-Antarctic waters. As formerly demonstrated in broadcasting echinoid species, morphological plasticity appears to be mainly linked to depth and swell exposure, specimens from exposed and shallow sites showing shorter spines and larger apical systems compared to specimens from sheltered or deep sites. Significant differences in the diet and trophic niche of the different phenotypes suggest that prey type and food diversity may also be a factor promoting distinct phenotypic responses, both in the feeding behaviour and morphology of echinoids.

This introduction presents a novel framework that distinguishes three activities of organized crime (OC): production (creating goods and services), trade (moving products and people), and governance (regulating markets and controlling communities). These activities require different skills and give rise to three different types of OC groups. To illustrate some of the points, I make references to the papers published in this Special Issue, on erotic fiction in China by Wang and Evelyn; on falsified medicines production and trade between Asia and Europe by Hamill; on drugs retail and gang control of a neighbourhood in Marseilles by Rodgers and Jensen; and the cocaine international distribution chain by Feltran.