Centralization represents the historical response of political elites to overcome the difficulties of coordination when faced with an external threat. Yet, we know little about the demand side of authority distribution in the context of a crisis. In this paper, we develop a theoretical model of the effect of crises and coordination inefficiencies on the territorial preferences of individuals. We predict that crisis-time uncoordinated responses will prompt a centralizing shift in preferences. We tested this argument using online survey experiments in a comparative sample of 13 countries in the first year of the Covid-19 pandemic. The results show that exposure to unsuccessful intergovernmental coordination shifted individual preferences toward a more centralized power allocation in a majority of countries. This effect is moderated by contextual conditions, such as actual multilevel policy efforts and changes in the intensity of the pandemic. Individual-level territorial identity or partisan identification also intervenes as a significant moderator of our treatment.

This study investigates expenditure of European parties in referendum campaigns. Previous work exploring why parties initiate referendums hints at the importance of subsequent campaigns to parties, but theoretical insights regarding party behavior in campaigning contexts are fragmented and limited. We argue that party expenditure indicates the extent of their engagement, and identifying explanatory factors can offer insights into underlying strategic goals driving parties in their behavior. Drawing on referendum instrumentalization literature and existing empirical studies, we propose a framework with three strategic factors and corresponding hypotheses. These are tested using official expenditure data for 47 parties campaigning in 24 referendums in eight European countries through bivariate and multivariate analysis. Our findings mainly suggest that parties see referendum campaigns as avenues for image building, spending more on average when they initiate them and when referendums are publicly salient. Additionally, parties seemingly prioritize elections, while spending limits are ineffective in curbing expenditure.

Lifetime pension pools—also known as group self-annuitization plans, pooled annuity funds, and variable payment life annuities in the literature—offer retirees lifelong income by collectively managing mortality risk and adjusting benefits based on the investment performance and the mortality experience within the pool. The benefit structure hinges on two key design parameters: the investment policy and the hurdle rate. However, past research offers limited guidance on optimal asset allocation in such settings, often relying on overly simplistic strategies. Furthermore, the choice of hurdle rate has received virtually no attention in the literature. This study addresses this gap by jointly analyzing optimal hurdle rates and investment strategies using a dynamic programming approach that allows for varying degrees of risk aversion via a hyperbolic absolute risk aversion utility function. Our findings reveal that, as risk aversion increases, the model favours more conservative portfolios and lower hurdle rates; conversely, lower risk aversion supports riskier allocations and higher hurdle rates. The threshold parameter—which reflects the minimum acceptable level of consumption—plays a critical role in shaping the hurdle rate behaviour.

This study aimed to evaluate adherence to the Mediterranean diet, a recognised healthy eating pattern, and the tendency towards orthorexia nervosa in professional athletes, and to examine their relationship with physical activity levels. The study was conducted with athletes (n 134) at the Turkish Olympic Preparation Center (TOHM). Data were collected using a questionnaire covering sociodemographic information, dietary habits, anthropometric measurements, the Mediterranean Diet Quality Index (KIDMED), the International Physical Activity Questionnaire-Short Form (IPAQ-SF) and the Orthorexia-11 (ORTO-11) scale assessing orthorexic tendencies. Of the participants, 17·2 % had poor dietary quality, 60·4 % moderate and 22·4 % good dietary quality. According to the ORTO-11 (cut-off ≤ 25 points), 30·6 % of athletes exhibited orthorexic tendencies. Athletes adhering to a diet had significantly higher orthorexia tendencies compared with non-dieters (P < 0·05). A significant association was found between athletic experience and orthorexic tendencies, particularly among those with 4–8 years and ≥8 years of experience (P < 0·05). Moreover, athletes consuming three main meals had significantly higher KIDMED and ORTO-11 scores than those consuming two meals (P < 0·05). No statistically significant correlation was found between the KIDMED score, ORTO-11 score and physical activity level (P > 0·05). Professional athletes showed moderate adherence to the Mediterranean diet, while certain groups displayed higher orthorexia tendencies. Diet quality and orthorexic tendencies differed significantly with eating habits such as athletic experience and meal patterns, whereas physical activity level had no effect. These findings highlight the importance of multidisciplinary nutrition strategies focusing on both performance and sustainable healthy eating behaviours.

Panic disorder is among the most common mental disorders, characterised by recurrent, unexpected panic attacks that are highly distressing and further lead to pervasive anxiety about future attacks and maladaptive behavioural changes. Existing pharmacological and psychological treatments often fail to produce lasting improvement, and relapse is common. Neither antidepressants, the current first-line drug treatments, nor benzodiazepines exert their actions sufficiently rapidly to head off panic attacks between the initial indications of panic symptoms and the fully developed panic attack. Therefore, there is a clear need for new pharmacological compounds, particularly those that could be administered at the first warning signs of an impending panic attack, to disrupt its genesis. Here we discuss the acid-sensing ion channel (ASIC) as a therapeutic target and the potential of amiloride, an ASIC antagonist administered via nasal spray, for rapid access to the brain, as a compound with potential to fill this need. We summarise relevant preclinical studies, including a demonstration of nebulised amiloride’s ability to normalise responses to carbon dioxide, a panicogenic, brain-acidifying agent. Following existing safety, stability and pharmacokinetic studies, clinical trials are needed to test the efficacy of this compound in individuals with panic disorder and/or recurrent panic attacks.

Extended radio sources present unique challenges for automated detection and classification in wide-field radio surveys. With current surveys such as the Evolutionary Map of the Universe (EMU), robust and scalable methods are essential to identify and catalogue these complex sources. We apply three automatic approaches to detect complex radio emission in EMU observations of the Galaxy And Mass Assembly (GAMA) 09 field (EMU-G09) in order to evaluate their relative strengths and limitations in preparation for large-scale application across future EMU data releases. These include DRAGNHUNTER, designed to detect likely DRAGNs (Double Radio sources associated with Active Galactic Nuclei) from a component catalogue; coarse-grained complexity, a metric designed to highlight regions of complex emission; and RG-CAT, a machine learning pipeline trained on radio sources identified in the EMU pilot survey. We find that together, the three methods recover nearly all extended sources in EMU-G09 but identify largely distinct, partially-overlapping subsets, with only 375 sources identified by all finders. This demonstrates that a combination of complementary techniques will be required to achieve a complete census of extended radio sources in future large-scale surveys.

International access to and sharing of biospecimens is critical to answer important questions about complex diseases, and to ensure the diversity in biospecimen collection necessary to advance science and develop therapies that benefit all. However, many challenges exist. These include the lack of harmonized ethical, legal, and policy frameworks regarding secondary uses of biospecimens and associated data; regulatory and policy hurdles; and differences in cultural perspectives and practices across regional and national jurisdictions.

In this manuscript, a set of ethical principles is presented with the intent to address some of these challenges by ensuring better alignment in ethical practices related to biobanking and the global use of human biospecimens. In addition, these principles could serve as a basis for promoting more consistency among national regulations and policies. The ultimate goal is to develop an international framework for global biospecimen and data sharing.

Between 2011 and 2018, Bulgaria enacted a series of reforms accommodating the two most salient demands of its Muslim minority in the postcommunist period: the registration of elected Muslim leadership and the provision of state funding for religious communities. This constituted a significant departure from the restrictive policies pursued during the first two decades after communism and from the repressive legacies of earlier periods. Through process tracing based on 11 semi-structured elite interviews, press releases, and secondary sources, I argue that the geostrategic concerns of Bulgarian elites from the influence of the minority’s kin-state, Turkey, from 2011 onward, and their aim to decrease the dependence of the minority on the kin-state provided the main motivation to accommodate Muslims’ religious demands. These concerns were driven by domestic political changes in Turkey in the post-2011 period and their reflections in the country’s foreign policy.

Three Germanic verbs with the meanings ‘to know’, ‘to teach’, and ‘to learn’ can all be traced back to the same PIE root *lei̯s- ‘to follow a track’. While evidence for all three verbs is recoverable from Gothic, only two verbal derivates passed down into the West Germanic languages, and none survived into North Germanic (although there was later reborrowing from Old English). This article charts these developments as well as subsequent ones, including the emergence of new verbs that came to express these key concepts in West and North Germanic up to present times. This etymological trail is guided by insights from Conceptual Metaphor Theory, which seeks to understand how more familiar concrete concepts (e.g. ‘to follow a track’, ‘to grasp’, ‘to see’) capture more abstract ones like ‘to know’, ‘to teach’, and ‘to learn’ in language. The main findings are: (i) that the original system “stative ∼ causative ∼ present” reconstructible for Proto-Germanic on the PIE root *lei̯s- is best continued today in German, whereas English already refashioned it early on in its history. North Germanic does not directly continue any verbal formation on that root, whereas Gothic displays a “perfect” system; (ii) formations on PIE *ǵneh3- ‘to recognize’ and *u̯ei̯d- ‘to see’ are of common Indo-European heritage, whereas those on *lei̯s-, also found in nominal formations in Italic, may have arisen polygenetically in the two branches, as also possibly those on PIE *teng-. Finally, (iii) only one conceptual metaphor among those found can be said to be of common Indo-European descent, namely to know is to recognize/have recognized.*

The objectives of the present study were (a) to determine the effects of a 12-week intervention using wearables promoted through physical education classes on physical activity, body composition, physical fitness and psychological well-being of overweight or obese adolescents; and (b) to analyze the differences in outcomes based on gender and baseline physical activity. Seventy-three overweight and obese adolescents (mean age: 13.44 ± 1.12 years) were randomly assigned to an experimental group (EG) or control group (CG). The EG used a physical activity wearable for 12 weeks. Both groups were assessed before and after the intervention. Regarding primary outcomes, the EG showed an increase in physical activity (p = 0.048) and reductions in body mass index (p = 0.007), fat mass (p < 0.001), and sum of 3 skinfolds (p = 0.002), with moderate-to-large effect sizes (η2 > 0.09). According to the secondary outcomes, improvements in physical fitness were limited, with increases observed only in abdominal muscular endurance, and these changes were also present in the CG. Subgroup analyses showed that females and adolescents with low baseline physical activity experienced greater benefits, particularly in fat-related variables (p < 0.001–0.037), with large effect sizes (η2 > 0.14). Additionally, adolescents with greater exposure to the wearable-based intervention showed more consistent improvements in fat-related outcomes (p < 0.001–0.032), with large effect sizes (η2 > 0.25). In conclusion, a wearable-based intervention promoted through physical education classes may contribute to meaningful improvements in body composition, particularly among females and previously inactive adolescents who are overweight or obese. However, effects on physical fitness and psychological well-being were limited, highlighting the importance of intervention design, adherence, and complementary motivational strategies.

This study examines how citizens and politicians evaluate different types of political conflict. Conflicts can be substantive in nature, involving disagreements over policy measures or clashes over core ideological values, or less substantive, concerning strategic relationships between parties. While conflict is inherent to politics, we know little about how different types of conflict are perceived by the public and how this differs from the perceptions of political elites. Whether citizens and their elected representatives share a common understanding of the role of conflict in politics is crucial, as misalignment may hamper political representation and effective governance. Empirically, our study relies on a survey experiment conducted among citizens (N = 8264) and politicians (N = 331) in four countries (Belgium, the Netherlands, Portugal, and Switzerland) to investigate whether different types of conflict lead to different evaluations. Our results show that politicians are more likely to endorse ideological conflicts (over goals or core values) and substantive conflicts (over policy measures), yet citizens are more likely to approve of personal conflicts than politicians. Furthermore, politicians judge citizens’ perceptions of substantive and ideological conflicts more positively than citizens themselves and overestimate the concern citizens have with personal conflicts. These results may have important implications. If politicians fail to recognize that citizens are less accepting of political conflicts, this might be detrimental for trust in political parties and democracy at large – thus undermining the legitimacy of the political system.

In a review article published in this journal in 2010, we described the mitigation and adaptation potential of organic agricultural systems. In this article, we reflect on our findings and update the results from 2010. Today’s scientific evidence confirms that the principles of organic agriculture can facilitate a transition to climate-neutral food systems. Compliance with only mandatory requirements of organic certification is not sufficient for climate neutrality but can significantly offsets agricultural emissions by avoiding mineral fertilizers and increasing soil carbon sequestration. Most relevant to achieve climate neutrality of the food system is a shift toward more plant-based diets. Although behavioral change is more challenging to achieve, the principles of organic agriculture can positively trigger a climate-sensitive mind-shift of consumption and production patterns. Organic farming methods can also significantly contribute to climate adaptation in terms of better resilience under climatic variability and stress conditions. The all-encompassing systemic approach of organic agriculture indicates a viable path to food system resilience to climate change.

Within the gyrokinetic formalism, we present and analytically study the equations for an explicit treatment of the trapped-electron-modified kinetic ballooning mode (KBM) and the electromagnetic version of the trapped-electron mode, in general geometry. The gradient of the plasma $\beta =8\pi p /B^2,$ the ratio of kinetic to magnetic pressure, is taken to be small enough to avoid including perturbations of the magnetic field strength. Trapped-electron-modified KBMs are first described close to ideal magnetohydrodynamic marginality, retaining the explicit resonant contribution of both ions and trapped electrons, and then in a strongly driven fluid limit. We show that maximum-$\mathcal J$ devices (where $\mathcal J$ is the second adiabatic invariant) enjoy relatively good stability properties at finite $\beta ,$ but the coupling of trapped electron and KBMs might induce modes rotating in the ion direction, thus eluding good maximum-$\mathcal J$ properties. An eigenvalue equation for the finite$\hbox{-}\beta$ trapped-electron-mode is derived and studied. We highlight the possibility of having an electron-temperature-gradient driven electromagnetic instability in regions of bad magnetic curvature. A mechanism for the destabilisation of the trapped-particle-enabled collisionless microtearing mode also is proposed. Our results are general and provide new theoretical ground for the characterisation of several magnetic confinement concepts, such as tokamaks, quasisymmetric and quasi-isodynamic stellarators.