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Is it ever rational to change your mind based on learning that others have changed theirs? This paper answers affirmatively and explores the conditions under which learning about others’ mind-changes should prompt you to reconsider your own. I propose that learning about others’ shifts in belief can motivate further inquiry, provide information about the existence or quality of first-order evidence, and recalibrate our evaluation of the issues at stake. However, not all changes of mind are epistemically meaningful: some may be superficial, misleading, or driven by non-epistemic factors. Critical evaluation is necessary for distinguishing between cases that provide genuine insight and those that are irrelevant. By investigating these dynamics, I aim to illuminate the broader epistemological significance of mind-changing and its implications for navigating complex and contentious issues.
Social disconnection, covering loneliness and social isolation, might be associated with the development of paranoid thoughts. Differential effects of loneliness and social isolation on the occurrence of paranoia have not been tested so far. Moreover, the role of cognitive mechanisms in these associations remains unknown. This study aimed to investigate differential associations of loneliness and social isolation with paranoid thoughts in the general population, considering the role of cognitive mechanisms.
Methods
Altogether, 3,275 individuals, enrolled from the general population, completed baseline and follow-up assessments spanning 6–7 months. Cognitive biases (rejection sensitivity, attributional biases, and safety behaviors), social cognitive problems, and subjective cognitive problems were measured. The cross-lagged panel network (CLPN) analysis was performed, controlling for the effects of sociodemographic characteristics, psychiatric treatment, substance use, depressive, and anxiety symptoms. Additionally, mediation was tested for the CLPN paths linking social disconnection with paranoid ideation, with one intermediary node representing cognitive processes.
Results
Loneliness was the most important node in terms of predicting other network variables. It was bidirectionally associated with paranoid thoughts. Cognitive processes mediated these associations (partial mediation for ideas of reference and full mediation for ideas of persecution). In turn, social isolation predicted paranoid thoughts through the effects on loneliness. It was also predicted by paranoid thoughts through attributional biases.
Conclusions
Social disconnection might be bidirectionally associated with paranoid thoughts. However, loneliness is more closely tied to paranoid thoughts compared to social isolation. Cognitive processes might mediate the association of social disconnection with paranoid thoughts.
The concept of hedging has been recently introduced and has been gaining traction in International Relations (IR) literature. So far, the notion has been mainly employed to make sense of the strategic behaviour of some south-east Asian secondary states amid growing Sino-American great power competition. Hedging can be understood as a strategy through which a minor state avoids clearly aligning vis-à-vis two powerful vying actors, maintaining instead an in-between and balanced position. As such, hedging can be interpreted as a peculiar form of neutrality. Yet such a paralleling has not been spelled out clearly from a theoretical standpoint in the existing literature. Moreover, no attempt has been made to precisely position hedging among the different categories of neutrality. This is a major gap, as it deprives the hedging concept of much of its theoretical and analytical usefulness in informing scholarly analyses. By precisely locating hedging within the neutrality family and by identifying its main analytical features, this paper aims to clarify theoretically the ‘nature’ of the phenomenon. At the same time, such operation aims to move the hedging literature beyond its current overwhelming focus on contemporary south-east Asia, opening up interesting empirical perspectives for the study of hedging across time.
Intestinal health challenges – including dysbiosis, inflammatory disorders, and pathogen susceptibility – impose severe economic losses and welfare concerns in intensive livestock production. Functional lipids, defined as bioactive lipid molecules with physiological benefits beyond basic nutrition, offer promising solutions to these issues. This review establishes a comprehensive definition of functional lipids and elucidates their metabolic process. Using short- and medium-chain fatty acid glycerides as a prime example, we examine their significant roles in energy homeostasis, gut microbiota composition and diversity, immune modulation, and antibacterial and antiviral activities. Additionally, we critically evaluate their current applications and future industrial potential in livestock production, providing evidence-based recommendations for their optimal implementation in animal nutrition strategies.
Mentorship is a key focus area of efforts to promote a robust biomedical workforce. A growing body of research suggests that mentors’ cultural diversity awareness is an important factor in effective mentoring that can support mentees’ academic and professional outcomes. Less is known about the psychometric properties of scales assessing cultural diversity awareness (CDA). Further, researchers may not have space in surveys to measure all aspects of CDA. We examine the factorial structure and measurement invariance of the CDA Race/Ethnicity (R/E) Behaviors Scale, a subscale from an originally developed CDA Scale, using a large diverse undergraduate sample enrolled in higher education institutions funded by the National Institutes of Health BUilding Infrastructure Leading to Diversity (BUILD) Initiative.
Methods:
The CDA R/E Behaviors Scale measures mentees’ perceptions of a mentor’s behaviors concerning cultural diversity awareness. Using a diverse national sample of over 4,000 undergraduate mentees, we examined dimensionality, reliability coefficients, and measurement invariance of the scale.
Results:
We found high reliability among the items with a Cronbach’s alpha of 0.91 and Omega of 0.91. Items indicated a unidimensional scale and we found differential item-functioning (DIF) with respect to gender, but no DIF across race/ethnicity.
Conclusion:
This study lends additional evidence to support construct validity of the CDA R/E Behaviors Scale, a subscale of the originally developed CDA Scale. Our study supports its use in future research for other science and medical training programs, and contributes tools to program evaluation efforts aimed at improving culturally responsive mentorship throughout the scientific career pathway.
The COVID-19 pandemic brought the EU health mandate under unprecedented scrutiny, providing a new impetus for action. The European Commission launched the ‘European Health Union’ (EHU), bringing a number of pre-existing and newer policy initiatives under a common umbrella. This contribution looks back at the recent developments in EU health law and policy, taking the 2019–2024 parliamentary term as a boundary. It offers an overview of what the EHU currently is, and what it could become. Despite its potential, the EHU is not yet a game changer. This can only happen if changes are brought to the EU’s competence and budgetary frameworks. The contribution provides first a brief introduction to the EU’s complex health competence framework and its general policy orientations in the field. We turn next to COVID-19, offering a condensed overview of the EU’s response and of the subsequent changes brought to the legal framework applicable to health emergencies. We finish by casting a closer look at the EHU, examining the descriptive and normative aspects of this concept, and making recommendations to increase the clarity, quality and legitimacy of EU action in the field.
The ageing population is anticipated to encounter several challenges related to sustainability. While policies such as ageing in place can benefit older adults in terms of familiarity and independence, these policies can also lead to increased social isolation. To facilitate ageing in the right place, it is crucial to understand how the design of environments promotes social sustainability. This article presents a scoping review of empirical research focused on the characteristics of housing and surrounding environments that support social integration, cohesion and participation of older adults. The search strategy was conducted in five databases, resulting in 20,477 articles. After screening 7,550 titles and abstracts based on predetermined inclusion and exclusion criteria, 19 articles were selected. The findings of these articles are presented across three themes: (1) housing environments, (2) environments beyond the home and (3) the social environment. Although there is no one-size-fits-all housing model for older adults, the authors suggest that ageing in place policies should be reconceptualized as ageing in ‘places’ and ‘spaces’, emphasizing the diversity of social needs of older adults. Understanding the environmental characteristics, the role of accessible and safe environments beyond the home, and how people and culture support a sense of belonging provides a policy direction for how to design socially sustainable environments for older adults in the future.
The adoption of the main text of the Pandemic Agreement at the 2025 World Health Assembly is a milestone in global health law. The adopted text makes several key contributions, but there were several missed opportunities in the negotiating process, and key roadblocks remain for the future of the Pandemic Agreement.
This paper examines the legal implications of the explicit mentioning of automation bias (AB) in the Artificial Intelligence Act (AIA). The AIA mandates human oversight for high-risk AI systems and requires providers to enable awareness of AB, i.e., the human tendency to over-rely on AI outputs. The paper analyses the embedding of this extra-juridical concept in the AIA, the asymmetric division of responsibility between AI providers and deployers for mitigating AB, and the challenges of legally enforcing this novel awareness requirement. The analysis shows that the AIA’s focus on providers does not adequately address design and context as causes of AB, and questions whether the AIA should directly regulate the risk of AB rather than just mandating awareness. As the AIA’s approach requires a balance between legal mandates and behavioural science, the paper proposes that harmonised standards should reference the state of research on AB and human-AI interaction, holding both providers and deployers accountable. Ultimately, further empirical research on human-AI interaction will be essential for effective safeguards.
The paper presents a simulation of the turbulent flow over and through a submerged aquatic canopy composed of 672 long, slender ribbons modelled as Cosserat rods. It is characterized by a bulk Reynolds number of 20 000, and a friction Reynolds number of 2638. Compared with a smooth turbulent channel at the same bulk Reynolds number, the canopy increases drag by a factor of 12. The ribbons are highly flexible, with a Cauchy number of 25 000, slightly buoyant, and densely packed. Their length exceeds the channel height by a factor of 1.6, while their average reconfigured height is only a quarter of the channel height. Different from lower-Cauchy-number cases, the movement of the ribbons, characterized by the motion of their tips, is very pronounced in the vertical direction, and even more in the spanwise direction, with root-mean-square fluctuations of the spanwise tip position 1.5 times the vertical ones. A canopy hull is defined to analyse the collective motion of the canopy and its interaction with the outer flow. Dominant spanwise wavelengths at this interface measure approximately one channel height, corresponding to twice the spacing of adjacent high- and low-speed streaks identified in two-point correlations of fluid velocity fluctuations. Conditional averages associated with troughs and ridges in the topography of the hull reveal streamwise-oriented counter-rotating vortices. They are reminiscent of the head-down structures related to the monami phenomenon in lower-Cauchy-number cases.
This study analyses the evolution of body mass index (BMI) as income increases across the population, controlling for age, sex, educational level, marital status and some lifestyle habits. To this end, a quantile regression, an econometric technique that readjusts the weights of the variables in each quantile to minimize deviations, has been carried out, where the variable that orders the sample is income. We use 316,777 observations from the European Health Interview Survey (EHIS) for these regressions. This approach allows us to separate the regression analyses for low-, middle-, and high-income groups, evidence that as individual income increases, BMI tends to rise. Consequently, individuals with higher incomes exhibit higher BMI levels. Additionally, the estimated parameters for explanatory variables increase with income, signifying that wealthier individuals not only have a greater likelihood of increased BMI but also that socio-economic factors influencing BMI – whether positively or negatively – evince a stronger impact as income levels rise.
Early language development has rarely been studied in hearing children with deaf parents who are exposed to both a spoken and a signed language (bimodal bilinguals). This study presents longitudinal data of early communication and vocabulary development in a group of 31 hearing infants exposed to British Sign Language (BSL) and spoken English, at 6 months, 15 months, 24 months and 7 years, in comparison with monolinguals (exposed to English) and unimodal bilinguals (exposed to two spoken languages). No differences were observed in early communication or vocabulary development between bimodal bilinguals and monolinguals, but greater early communicative skills in infancy were found in bimodal bilinguals compared to unimodal bilinguals. Within the bimodal bilingual group, BSL and English vocabulary sizes were positively related. These data provide a healthy picture of early language acquisition in those learning a spoken and signed language simultaneously from birth.
This study investigated the effects of enzyme and/or sodium butyrate supplementation on the performance, eggshell quality, pancreatic enzyme activities and jejunum histology of laying quails-fed diets containing sunflower meal (SFM). A total of 140 24-week-old quails were randomly allocated into five experimental groups with 14 replicates each. The treatment diets were: NC (negative control without SFM), PC (positive control with 25% SFM), PC+E (PC + 500 g/tonne multi-enzyme), PC+B (PC + 1000 g/tonne sodium butyrate) and PC+EB (PC + 500 g/tonne multi-enzyme + 1000 g/tonne sodium butyrate).
As a result of this study, egg production was significantly higher in PC, PC+E and PC+EB groups compared to NC, while feed intake increased in PC but decreased with enzyme and/or sodium butyrate supplementation. Eggshell-breaking strength was highest in PC+B, whereas eggshell ratio and thickness increased across all groups compared to NC. Pancreatic lipase activity increased in PC+E and PC+B, but pancreatic amylase and protease activities decreased in all treatments compared to NC. Villus height (VH) and crypt depth (CD) improved with enzyme and/or sodium butyrate supplementation, with villus width and surface area significantly greater in PC+E and PC+EB. However, the VH/CD ratio decreased in all groups except PC+EB. In conclusion, diets containing 25% SFM did not impair performance or egg quality and improved eggshell thickness and ratio. Enzyme and/or sodium butyrate supplementation reduced feed intake enhanced pancreatic lipase activity, decreased amylase and protease activities and improved jejunum histology, with sodium butyrate notably increasing eggshell-breaking strength.
This paper reconsiders the term ‘Generation of the Thirties’ in modern Greek art, arguing that the artists retrospectively grouped under this label emerged mainly after the Second World War and were united by a time-specific pursuit of ‘Greekness’. It examines how their synthesis of local tradition and European modernism reflected post-war quests for national identity and was shaped by Cold War cultural politics and mass media stereotypes. It traces the history of the term ‘Generation of the Thirties’ in art, explores its academic and curatorial consolidation in the late 1970s, and examines why it became attractive during the Metapolitefsi era.
This paper documents how administrative geography functioned as a strategic political instrument during post–Civil War Reconstruction. I document sixty-seven counties established by Republican-controlled state legislatures across the South that concentrated Republican and African American voters. Historical boundary data and election returns show that Republicans created new counties in areas where they held strong support, added legislative seats that strengthened their majorities, and expanded opportunities for African American political representation at the state and local level. This partisan model of administrative unit proliferation advances our understanding of institutional design during contested democratization. The findings contribute to research on American political development, democratization, redistricting, and administrative design politics—showing that county creation functioned not merely as administrative policy but as a tool in partisan competition with lasting consequences for American political geography.
The Balkan Peninsula is considered to have acted as a glacial refugium as well as a biogeographic crossroads during the Pleistocene, playing an important role in the survival of biota and population dynamics through time. Furthermore, rather than being a homogeneous habitat, it is thought to have hosted a number of diverse, isolated “refugia within refugia,” providing suitable conditions for the persistence of different plant and animal species, as well as, potentially, Pleistocene hominins. We present the first palynological and charcoal record, although discontinuous, from the middle Pleistocene archaeological site Marathousa 1 (MAR-1; Megalopolis Basin) to reconstruct the local environment along with the first multispecies record of coprophilous fungal spores from Greece to track herbivore activity during the Marine Isotope Stage (MIS) 12. Our data show that during the early and late MIS 12, when the forest cover substantially decreased, mesophilous trees and aquatic vegetation persisted, reflecting wetter and milder conditions at MAR-1. Herbivore presence is documented by ∼473 ka, while its intensification coincides with increased vegetation biomass and local fire activity during the late MIS 12. Our findings suggest that MAR-1 likely served as a glacial refugium for middle Pleistocene hominins, providing essential resources for their survival during MIS 12.
To address limited data on whole grain (WG) consumption in the UK, we investigated trends and socio-demographic patterns of WG consumption from the National Diet and Nutrition Survey from 2008/2012 to 2016/2019 and examined the relationship between WG and dietary intakes. We analysed 15 655 individuals aged ≥ 1·5 years who completed a 4-day food diary. WG consumption was quantified by estimating the WG content of individual foods using publicly available ingredient information. Survey-weighted mean WG consumption over time and by population sub-group was calculated. Survey-weighted trend tests and Wald tests were used. Total WG intake in the general population did not change from 2008/2012 to 2016/2019. WG from high-fibre cereals and bread declined by 16·2 % (11·1–9·3 g/d) and 19·4 % (12·4–10 g/d), respectively, while other cereals (e.g. rice/pasta) increased by 72·5 % (4·0–6·9 g/d), but contributed considerably less than other categories. In the most recent data (2016–2019), older adults (65+ years) had the highest energy-adjusted WG consumption, followed by children 1·5–3 years. Individuals with lower incomes, adolescents and current smokers consumed the least WG. Whole grain intake was associated with generally higher quality diets, specifically consuming more fibre, potassium, Ca, Fe, Mg, fruits/vegetables, pulses/nuts and oily fish and consuming less free sugars, total fat, saturated fat, Na and red/processed meat (Ptrend < 0·001 for all). Despite some dietary improvements in the UK, WG intake appears unchanged from 2008/2012 to 2016/2019.
This manuscript presents a novel three-series-only topology P-insulator-N (PIN) diode single-pole-double-through (SPDT) switch designed to address the challenges of high power handling and low insertion loss in Q-band and V-band communication systems. The manuscript provides a detailed theoretical analysis of series-connected PIN diodes, offering insights into their behavior under both small- and large-signal conditions. Based on GaAs PIN diode technology, the switch operates across a frequency range of 37.7 to 61 GHz, achieving a low insertion loss of 0.707 dB and providing an isolation of 24.6 dB. The proposed SPDT switch demonstrates a high $\text{IP}_{\text{0.1~dB}}$ of 37.6 dBm at 38 GHz. With a compact chip size of $0.905\times 0.885 \text{mm}^2$, including all pads, this work offers excellent power handling capability, making it highly suitable for advanced communication systems in Q-band and V-band applications.
This article investigates the boundaries of the chronological-cultural unit of ‘Early Greece’, a phrase widely used in scholarship but which has little taxonomic meaning. I argue that the phrase, and the values that it encodes, continues to exist in a traditional evolutionary framework of cultural development within the Greek world. Through a bibliographical case study, I further demonstrate that there are different chronological understandings of ‘Early Greece’ within different subdisciplines, with material-based scholarship applying it predominantly to the Early Iron Age and text-based scholarship predominantly to the Archaic period. Following this, the article connects ‘Early Greece’ with protohistory, particularly through the lens of Homer references, and explores the ways in which the positionality of ‘Early Greece’ emphasizes the authority of textual sources over material ones and continues to articulate an under-defined vision of Greece centred on the fifth century BCE.