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The epidemiology and age-specific patterns of lifetime suicide attempts (LSA) in China remain unclear. We aimed to examine age-specific prevalence and predictors of LSA among Chinese adults using machine learning (ML).
Methods
We analyzed 25,047 adults in the 2024 Psychology and Behavior Investigation of Chinese Residents (PBICR-2024), stratified into three age groups (18–24, 25–44, ≥ 45 years). Thirty-seven candidate predictors across six domains—sociodemographic, physical health, mental health, lifestyle, social environment, and self-injury/suicide history—were assessed. Five ML models—random forest, logistic regression, support vector machine (SVM), Extreme Gradient Boosting (XGBoost), and Naive Bayes—were compared. SHapley Additive exPlanations (SHAP) were used to quantify feature importance.
Results
The overall prevalence of LSA was 4.57% (1,145/25,047), with significant age differences: 8.10% in young adults (18–24), 4.67% in adults aged 25–44, and 2.67% in older adults (≥45). SVM achieved the best test-set performance across all ages [area under the curve (AUC) 0.88–0.94, sensitivity 0.79–0.87, specificity 0.81–0.88], showing superior calibration and net clinical benefit. SHAP analysis identified both shared and age-specific predictors. Suicidal ideation, adverse childhood experiences, and suicide disclosure were consistent top predictors across all ages. Sleep disturbances and anxiety symptoms stood out in young adults; marital status, living alone, and perceived stress in mid-life; and functional limitations, poor sleep, and depressive symptoms in older adults.
Conclusions
LSA prevalence in Chinese adults is relatively high, with a clear age gradient peaking in young adulthood. Risk profiles revealed both shared and age-specific predictors, reflecting distinct life-stage vulnerabilities. These findings support age-tailored suicide prevention strategies in China.
Dicamba-resistant soybean was developed and commercialized by Monsanto in 2016, and in recent years, barnyardgrass has become more troublesome for growers who use residual herbicides with dicamba technology. Field studies were conducted from 2019 to 2021 in Stoneville, Mississippi, to evaluate barnyardgrass control after applications of glyphosate or glyphosate + dicamba, when mixed with residual herbicides, and when applied sequentially. In the first field study, glyphosate (1,120 g ae ha−1) and glyphosate + dicamba (560 g ae ha−1) were applied in combination with common residual herbicides. The second field study included an initial treatment with glyphosate (1,120 g ha−1), glyphosate + dicamba (560 g ha−1), and glyphosate + dicamba + S-metolachlor (1,064 g ai ha−1) followed by a sequential treatment of glyphosate or glyphosate + dicamba at 3 and 7 d after an initial herbicide treatment. Results indicated that glyphosate alone provided greater barnyardgrass control than glyphosate + dicamba. Additionally, at 28 d after treatment, pyroxasulfone, pyroxasulfone + fluthiacet, dimethenamid-P, and S-metolachlor did not affect postemergence control of barnyardgrass after glyphosate + dicamba treatments. Furthermore, sequential herbicide treatments of glyphosate or glyphosate + dicamba led to no difference in barnyardgrass control 28 d after the sequential treatment. These results indicate that options exist for adding residual herbicides to glyphosate + dicamba treatments and that sequential treatments of glyphosate or glyphosate + dicamba are important for optimizing barnyardgrass control.
Women’s reproductive autonomy matters for gender equality, but abortion laws rarely pass without limitations and restrictions on access. Legislative abortion reform also triggers conservative resistance, forcing feminists to develop new strategies to protect rights. While scholars often study abortion laws’ adoption and implementation separately, we identify patterns in feminists’ decisions during adoption, on the one hand, and conservative actors’ responses and feminists’ strategies during implementation, on the other. We propose an analytic framework that maps different decisions during adoption onto different strategies during implementation. During adoption, we distinguish between acceptable conditions and strategic sacrifices. During implementation, the latter allows feminists to play offense while the former forces feminists into playing defense. We develop this framework through in-depth primary research in Chile and Uruguay alongside evidence from three additional Global South cases. Our framework helps scholars and policy makers alike to anticipate how decisions during adoption affect actors’ behavior during implementation.
How does right-wing terrorism affect electoral support for populist radical right parties (PRRPs)? Recent research has produced contrary answers to this question. We argue that only high-intensity attacks, whose motives and targets mirror PRRPs’ nativist agenda, are likely to generate a media backlash that dampens electoral support for PRRPs. We test this argument by combining high-frequency survey and social media data with a natural and survey experimental design. We find that right-wing terror reduced support for the radical right party Alternative für Deutschland after one of the most intense nativist attacks in recent German history. An analysis of all ninety-eight fatal right-wing attacks in Germany between 1990 and 2020 supports our argument. Our findings contribute to an understanding of how political violence triggers partisan detachment and have important implications for media responsibility in the aftermath of terrorist attacks.
Flow separation in highly loaded axial compressors remains a major barrier to performance, motivating the search for active flow control strategies. This study investigates air injection to energise low-momentum endwall flow in a tandem stator configuration, representing the first investigation of its kind for tandem vanes. A numerical investigation was conducted, starting with a smooth-casing reference case and progressing to parametric studies of slot geometry (inclination $\alpha $, jet angle $\beta $, radius of curvature ${R_c}$, circumferential width ${w_c}$), relative injection mass flow rate ${\dot m_{inj}}/{\dot m_{stall}}$ and axial location $\zeta $. The results show how each parameter influences efficiency and pressure ratio, yielding design guidelines: shallow $\alpha $, moderate $\beta $ towards the separation zone, relatively large ${R_c}$ and a balanced ${w_c}$–${\dot m_{inj}}/{\dot m_{stall}}$ combination, best captured through the momentum coefficient ${C_u}$ and velocity ratio ${u_{inj}}/{u_\infty }$. Injection near $\zeta \approx 1.2$ (just upstream of separation) proved most effective, and off-design simulations showed larger efficiency gains towards de-throttled conditions, although stall margin was unaffected. Robustness was confirmed through turbulence-model comparisons and injector turbulence variations, which consistently reproduced suppression of suction-side separation. An integrated analysis of aerodynamic losses further showed that injection strategies remain beneficial when loss penalties are considered. The study thus establishes transferable guidelines for injector design in tandem stators, providing a foundation for future optimisation and experimental validation.
To examine how school food policies and perceived barriers influence food provision in New Zealand primary school canteens, using the ‘Healthy Food and Drink Guidance for Schools.’
Design:
Cross-sectional analyses of school food menus, and school food policy and practices surveys completed by school leaders/principals.
Setting:
New Zealand primary schools.
Participants:
239 primary schools completed the school food policies and practices survey, and 80 schools provided canteen menus.
Results:
Most schools reported having a healthy food and drink policy in their school (76.2%) and promoted healthy eating during school hours (87.4%). Two-thirds (69.5%) identified barriers to healthy food and drink provision, most commonly the convenience of ready-made foods (39.3%), and resistance from parents (34.3%). The number of reported barriers was not a significant predictor for the presence of a school food policy (OR-1.034, p=0.841). School menus (n=80) consisted of 16.4% ‘green’ items, 34.7% ‘amber’ items, and 36.8% ‘red’ items. There was no relationship between the percentage of ‘green’, ‘amber’, and ‘red’ items and the presence of a school food policy or reported barriers. More than a third (38.9%) of menus from schools that reported they had a ‘Plain Milk and Water’ only policy still contained sugar-sweetened beverages.
Conclusions:
Although most New Zealand primary schools had healthy food policies, this was not consistently reflected in healthy food items on canteen menus. Further research is needed to understand how systemic barriers, such as cost, convenience, and parental influence, affect policy implementation and school food provision.
This article argues that the environmental contexts of memory are vulnerable to Artificial Intelligence (AI)-generated distortions. By addressing the broader ecological implications for AI’s integration into society, this article looks beyond a sociotechnical dimension to explore the potential for AI to complicate environmental memory and its role in shaping human–environment relations. First, I address how the manipulation and falsification of memory risks undermining intergenerational transmission of environmental knowledge. Second, I examine how AI-generated blurring of boundaries between real and unreal can lead to collective inaction on environmental challenges. By identifying memory’s central role in addressing environmental crisis, this article places emerging debates on memory in the AI era in direct conversation with environmental discourse and scholarship.
This piece argues that to understand how cultural heritage functions as a form of power at the international level, it is essential to deconstruct the ‘productive politics’ that surround and shape the material and symbolic spatial formations of heritage and heritagisation. To this aim, by integrating critical accounts on heritage politics, geopolitics, and biopolitics, this piece deconstructs the dynamics of Turkey’s heritagisation of traditional Turkish archery (TTA) in Turkey and beyond. We introduce heritage geopolitics as a novel analytical framework to unpack the role of these multiple intertwined scales of spaces in heritagisation and the ‘productive politics’ behind it. Heritage geopolitics, explained through the heritagisation of TTA, helps to illustrate how heritagisation becomes a multiscalar hegemonic process that shapes various features of the domestic and international orders, from the biopolitical to the geopolitical, attempting to challenge existing narratives of power and moral authority. We demonstrate that heritage geopolitics differs from other uses of heritage in world politics (such as cultural diplomacy, heritage diplomacy, or soft power) by foregrounding the domestic and embodied moral foundations of biopolitical and geopolitical imaginations embedded in the heritagisation processes.
New research at Ciepłe, a unique early-medieval centre in northern Poland, reveals a Piast-era complex with three strongholds, elite chamber graves and far-reaching connections. Founded in the late tenth century AD, Ciepłe challenges traditional models of Pomeranian integration, offering fresh perspectives on early medieval state formation, frontier strategy and cross-cultural interactions.
Childhood maltreatment is a robust predictor of aggression. Research indicates that both maltreatment experiences and aggression are moderately heritable. It has been hypothesized that gene–environment correlation may be at play, whereby genetic predispositions to aggression in parents and children may be confounded with family environments conducive to its expression. Building on this framework, we tested whether maltreatment mediates the association between a polygenic score for aggression (PGSAGG) and school-age aggression, and whether this varied for reactive and proactive aggression.
Methods:
The sample comprised 721 participants (44.9% males; 99.0% White) with prospective assessments of maltreatment from 5 months to 12 years (10 assessments;1998–2010), and teachers-reported aggression from ages 6 to 13 (6 assessments; 2004–2011). The PGSAGG was derived using a Bayesian estimation method (PRS-CS).
Results:
PGSAGG was associated with most aggression measures across specific ages and trajectories. Maltreatment experiences partially mediated the association between PGSAGG and the Childhood-Limited trajectory of reactive – but not proactive – aggression.
Conclusion:
Children with higher genetic propensities for aggression were more likely to experience maltreatment, which partly explained the association between PGSAGG and a Childhood-Limited trajectory of reactive aggression during elementary school. This finding reinforces the possibility of confounding influences between genetic liability for aggression and maltreatment experiences.
The COVID-19 pandemic disproportionately affected vulnerable communities. Social vulnerability index (SVI) for census tracts with a Paxlovid dispensing site was higher than those without a dispensing site (0.56 vs. 0.45, P < .01). Paxlovid utilization was lower in high-SVI tracts. Pandemic preparedness planning should address equitable access to anti-infective therapies.
Around the turn of the twelfth century, Bishop Ivo of Chartres (c. 1040-1115) wrote the sermon-tract Quare deus natus et passus sit in which he outlined the process of human redemption. Although widely circulated in the twelfth century, this important text has been little studied. Here it is situated within the context of high-medieval penance. It is argued that Ivo was specifically concerned to impress the importance of contrition in Quare deus natus et passus sit by providing an outline of the redemptive process that emphasised God’s ‘medicinal mercy’ whilst delineating human knowledge of that process for priestly audiences.
Since 2017, Digital Twins (DTs) have gained prominence in academic research, with researchers actively conceptualising, prototyping, and implementing DT applications across disciplines. The transformative potential of DTs has also attracted significant private sector investment, leading to substantial advancements in their development. However, their adoption in politics and public administration remains limited. While governments fund extensive DT research, their application in governance is often seen as a long-term prospect rather than an immediate priority, hindering their integration into decision-making and policy implementation. This study bridges the gap between theoretical discussions and practical adoption of DTs in governance. Using the Technology Readiness Level (TRL) and Technology Acceptance Model (TAM) frameworks, we analyse key barriers to adoption, including technological immaturity, limited institutional readiness, and scepticism regarding practical utility. Our research combines a systematic literature review of DT use cases with a case study of Germany, a country characterised by its federal governance structure, strict data privacy regulations, and strong digital innovation agenda. Our findings show that while DTs are widely conceptualised and prototyped in research, their use in governance remains scarce, particularly within federal ministries. Institutional inertia, data privacy concerns, and fragmented governance structures further constrain adoption. We conclude by emphasising the need for targeted pilot projects, clearer governance frameworks, and improved knowledge transfer to integrate DTs into policy planning, crisis management, and data-driven decision-making.
How do legal and medical professionals construct patients’ legal status and mental states in courtrooms, and how do patients themselves shape those constructions? This paper analyzes 300 hearings in Paris and New York City where people who have been involuntarily hospitalized in psychiatric facilities ask to be released. In both cities, courts reject the vast majority of requests. They do so by drawing on the two systems’ distinctive legal repertoires and control capacity to make patients into different kinds of serviceable subjects: people whose rights are given nominal consideration in the courtroom, but who are nonetheless classified as needing the forced interventions that the psychiatric system has the resources to provide. In Paris, legal professionals emphasize procedural rights while deferring to medical evaluations of patients’ consent, defined as their underlying willingness to accept long-term treatment. In New York, lawyers challenge psychiatric expertise but bargain with doctors and patients over compliance, understood as a short-term acceptance of medication. This paper reorients attention from the self-governing subjects that hybrid medical-legal-welfare interventions claim to ultimately produce toward the more contingent and situational serviceable subjects that allow for ongoing professional collaboration and institutional processing in contexts of diminished resources and expanded patients’ rights.
Directive (EU) 2019/882 on the accessibility requirements for products and services (AA), provides that the information disclosed by providers of consumer banking services to persons with disabilities in the European Union must be understandable (the understandability rule), a rule that is especially relevant to access barriers related to neurodiversity. Understandability is an open-textured term which, in the multilayered and pluralistic context of financial services regulation, gives rise to ambiguity as to its scope of application. It is not clear, prima facie, whether the understandability rule merely applies to (1) disclosures required under the AA (the narrow application), or also (2) disclosures regulated by other EU Directives applicable to consumer banking services (e.g., Directive 2023/2225 on consumer credits), and (3) contractual documentation provided in accordance with these EU Directives. This article undertakes this interpretation exercise and concludes that the rule should be applied narrowly, on the basis of established EU interpretation methods (grammar, teleological, systemic and comparative), analysis of the contrast between the AA and its regulatory context, and general regulatory principles.