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Encouraging children’s sympathy (i.e., concern for others) across an array of social contexts is important for strengthening their prosocial responses to conflict and reducing aggression. We examined Canadian children’s (6, 9, and 12 years; N = 186; 50% girls and 50% boys) situational sympathetic responding following harm to victims, and how sympathy across contexts was linked to their aggressive behaviors (beyond dispositional sympathy). Children’s situational sympathy (sadness supported by moral reasoning) was measured in response to (un)provoked harm to hypothetical peers in vignettes. Parents reported on children’s proactive and reactive aggression. We also measured children’s dispositional sympathy via child- and parent-reports. Results showed that children felt stronger situational sympathy for victims of unprovoked harm than provoked harm, and only sympathy following unprovoked harm showed age-related increases. Above and beyond dispositional sympathy, lower situational sympathy in response to provoked harm was associated with higher reactive aggression. These findings demonstrate that children’s sympathy is dampened by a victim’s prior negative behavior – an emotional blunting effect that may have implications for their own retaliatory behavior.
The aim of the experiment reported in this research paper was to determine the influence of the bovine appeasing substance (BAS) on milk yield, energy metabolism, inflammation, and stress in cows during the transition period. Twenty-four multiparous Holstein cows (day 28 pre-partum to 21 postpartum) were distributed randomly into two groups: control (n = 12) and BAS (Secure Cattle®; n = 12). Each animal was administered 5 mL of the product on days 28 and 14 pre-partum and on the day of calving. The feed intake was assessed using automated, individual feeders and the milk yield was determined electronically. Six milk samples were obtained from each animal, which were analyzed for chemical composition and somatic cell count. Six blood samples were obtained per animal for future biochemical analyses (free fatty acids, beta hydroxybutyrate, cortisol, myeloperoxidase and paraoxonase 1). The statistical analyses were conducted with the JMP Pro 14 software, with P ≤ 0.05 being considered as statistical significance. BAS-treated cows showed higher milk yield than controls. Dry matter intake (DMI) during the pre- and postpartum periods was greater for the control than treated group. The BAS group exhibited reduced plasma cortisol postpartum. In conclusion, cows treated with BAS showed higher milk yield, lower DMI, and reduced plasma cortisol concentrations than controls.
This study explores the relationship between sustainable earthquake awareness and earthquake stress coping strategies among university students following the February 6, 2023, earthquake.
Methods
A descriptive, cross-sectional study was conducted between March and April 2024, involving 239 university students. Following the STROBE checklist, data were collected using the Personal Information Form, Earthquake Stress Coping Scale (ESCS), and Sustainable Earthquake Awareness Scale (SEAS). Ethics approval was obtained, and data were gathered through face-to-face surveys.
Results
The average participant age was 21 years; 67.8% were women, and 20% had direct earthquake experience. Among participants, 67.4% reported negative academic impacts due to the earthquake. Higher SEAS scores were associated with higher income, prior earthquake experiences, having an emergency kit, securing belongings, and participation in earthquake training and drills. Higher ESCS social support-seeking scores correlated with higher income, earthquake preparedness training, drill participation, awareness of emergency meeting areas, and enrollment in the child development department.
Conclusion
The findings highlight gaps in earthquake preparedness among university students while emphasizing the role of personal earthquake experiences in fostering awareness and adaptive coping strategies. Enhancing earthquake preparedness training could improve resilience among students in earthquake-prone regions.
We investigate turbulent Taylor–Couette flow between two concentric cylinders, where the inner cylinder of radius $r_i$ rotates while the outer one of radius $r_o$ remains stationary. Using direct numerical simulations, we examine how varying the radius ratio $\eta = r_i / r_o$ from $\eta = 0.714$ down to $0.0244$ affects the flow characteristics at low to moderate Reynolds numbers. Our results show significant changes in the flow structures and statistics in the limit of a vanishingly small inner radius. The turbulent kinetic energy, scaled with the friction velocity at the inner cylinder, does not exhibit a self-similar scaling; instead, it decreases with decreasing $\eta$. The turbulent kinetic energy budgets reveal that the locations of peak production and total dissipation are independent of $\eta$, whereas their amplitudes decrease as $\eta$ increases. The pressure–velocity correlation near the inner cylinder is large for small $\eta$ and its amplitude decreases with increasing $\eta$, while the turbulent transport term exhibits the opposite trend. Numerical simulations for $\eta \leqslant 0.5$ show that, for our specific set-up, a rather good collapse of the distribution of the normalised torque versus the Taylor number ($ \textit{Ta}$) is obtained when the latter is defined according to Chandrasekhar (Hydrodynamic and Hydromagnetic Stability, Oxford Univ. Press, 1961), with a tendency towards a $ \textit{Ta}^{1/3}$ regime at sufficiently large $ \textit{Ta}$.
Recent scholarship has emphasized methodological innovations to mitigate preference falsification in public opinion data, yet systematic scrutiny of bias in regression analyses remains limited. Drawing on analyses of political trust in China, we offer three key insights. First, determining the direction of social desirability bias in regression estimates—whether over- or underestimation—is challenging ex ante. Second, analyses of two nationally representative Chinese surveys, one incorporating a list experiment, cast doubt on the purported positive effect of social welfare expansion on political trust. Extending beyond social welfare and the Chinese case, we find similar biases when regressions rely on direct questions. Third, we show that certain identification strategies can partially mitigate regression bias when direct questions are unavoidable.
To reveal the influence laws of casing abradable coating wear on compressor aerodynamic performance, a numerical simulation study was conducted on the performance of Rotor 37 under high-speed scraping conditions with different hardness coating wear morphologies. The results show that compressor isentropic efficiency and outlet mass flow are sensitive to scraping-induced morphology changes. The medium-hardness coating causes the most significant performance degradation, with maximum reductions reaching 1.96% and 1.39%, respectively, while the pressure ratio shows little variation. Scraping grooves aggravate mixing losses between leading-edge (LE) leakage flow and mid-chord (MID) leakage flow. The tip leakage flow pushes suction-side separation vortices toward the main flow path. Under medium-hardness coating scraping conditions, the maximum entropy generation region affects up to 9.1% blade height and induces tip leakage vortex-shockwave interactions, resulting in substantial tip losses. The compressor aerodynamic performance is less affected by wear zone roughness, with the maximum isentropic efficiency reduction being only 0.31%. When wear zone roughness increases, near-wall turbulence fluctuations intensify and separation zones expand, causing flow structure changes in tip leakage paths and blade wake regions, which shifts the compressor aerodynamic characteristics toward lower flow rates. The study demonstrates that coating hardness alters leakage flow structures through wear morphology depth: medium-hardness coatings with the deepest wear grooves exhibit maximum performance deterioration, while high-hardness coatings show better wear resistance and performance maintenance.
This study investigates the long-term associations between a childhood allowance (parental pocket money) and financial literacy, monetary attitudes, and time-discounting preferences in adulthood, with a specific focus on gender differences, using survey data from Japan. Gender factor analyses were conducted to identify common factors in psychological attitudes toward money. Subsequently, we estimated the relationship between childhood allowance and these factors, as well as the time-discounting preference and financial literacy by gender. Interaction terms between allowance types and gender were included to examine heterogeneous associations. Our findings reveal that regular monthly allowances are associated with good budgeting habits among males, whereas females receiving any form of allowance tend to have less negative attitudes toward money. Furthermore, the relationship between a childhood allowance and time-discounting preferences varies by gender, with females being more affected by the allowance. Additionally, the association between childhood allowance and financial literacy differs by gender and varies depending on how the allowance is received. Overall, this study underscores the importance of considering childhood financial experiences to understand financial behaviors and attitudes.
The transient response of an ice shelf to an incident wave packet from the open ocean is studied with a model that allows for extensional waves in the ice shelf, in addition to the standard flexural waves. Results are given for strains imposed on the ice shelf by the incident packet, over a range of peak periods in the swell regime and a range of packet widths. In spite of large differences in speeds of the extensional and flexural waves, it is shown that there is generally an interval of time during which they interact, and the coherent phases of the interactions generate the greatest ice shelf strain magnitudes. The findings indicate that incorporating extensional waves into models is potentially important for predicting the response of Antarctic ice shelves to swell, in support of previous findings based on frequency-domain analysis.
This article examines Israeli juvenile courts as sites where poverty is present yet systematically denied as a cause of child neglect. Drawing on focused ethnographic observations, I show how factual reports routinely document material deprivation—housing shortages, lack of food, utilities cutoffs—yet court actors reject poverty as a legitimate explanation for neglect. Instead, they insist that “good parents” should be able to cope with scarcity, thereby displacing structural conditions onto individualized parental failure. I frame this configuration as part of “criministrative law”: an administrative forum that adopts criminal-style rituals of blame and correction while deferring to welfare agencies, leaving families without the protections of either criminal or administrative law. This criministrative denial of poverty produces epistemic marginalization of parents and legitimates punitive interventions. As a normative remedy, I propose adapting the poverty-aware paradigm from social work to law, reframing protection as solidarity rather than surveillance.
In 2019 we published the extensive review paper ‘Petawatt and exawatt class lasers worldwide’ in High Power Laser Science and Engineering. We are delighted that the review has achieved over 1000 citations on Google Scholar and over 750 on Web of Science. We take this opportunity to reflect on the current state of the field.
The objective of this study was to develop, implement, and refine a food environment survey to capture people’s perceptions of their food environments in low-and middle-income countries: the Food Environment Perceptions Survey (FEPS).
Design:
Identifying aspects of food environment to include: drawing from existing survey instruments; a Delphi survey with food environment experts working globally; workshops with local experts in India and Cambodia; cognitive testing of the survey items; and piloting the tools in diverse field settings in India and Cambodia.
Setting:
Rural, peri-urban, and urban communities in India and Cambodia.
Participants:
Global food environment experts for Delphi survey; food environment experts in India and Cambodia for workshops; convenience sample of participants in India (n=44) and Cambodia (n=60) for FEPS piloting.
Results:
The FEPS underwent many iterations prior to piloting. The initial versions of the survey were long, leading us to remove questions and reconfigure the survey to streamline it. The workshop participants rated the revised survey versions relatively favorably. The final survey consists of 109 questions covering six sections: accessibility and availability (48 questions); affordability (5 questions), convenience (17 questions); quality and safety (3 questions); information, promotion, and labeling (16 questions); and an optional sustainability section (20 questions). Based on pilot data, we found significant differences in how participants interacted with different food environment types across rural, peri-urban, and urban transects.
Conclusions:
The finalized FEPS is a newly developed survey instrument that can be incorporated by other researchers to characterize diverse perceptions of food environments in LMICs.
We study the dynamic interaction of two viscous gravity currents in a confined porous layer using laboratory experiments in a vertically placed bead-packed Hele-Shaw cell. By varying the injection rate, along with the density and viscosity of the injecting and ambient fluids, these experiments cover three exact and eight approximate regimes of gravity current interaction, as identified based on the one-dimensional sharp-interface model. By superimposing the theoretically predicted profile shapes and time-dependent frontal locations, a verification is obtained in the different asymptotic regimes of viscous current interaction. Overall, fairly good agreement has been observed between the time-dependent numerical solutions and laboratory measurements on the profile shapes, particularly in the bulk region, where the aspect ratio of the interface shape is fairly large. Such an observation indicates the applicability of the sharp-interface model of viscous current interaction, including the very interesting dynamics of overriding and coflowing. However, the self-similar solutions in some of the exact regimes fail to make reasonable predictions in these experiments, presumably due to the influence of unfinished time transition. We have also observed some degree of disagreement in the frontal regions, which is likely due to the influence of fluid mixing, two-dimensional flow, local heterogeneity and the development of hydrodynamic instabilities for the viscously unstable experiments. The theoretical predictions of the model problem, along with the laboratory experimental observations, offer useful insights into the potential application of, e.g. the technology of co-flooding CO$_2$ and water in oil fields for the co-profits of geological CO$_2$ sequestration and enhanced oil recovery.
This article derives analytical expressions fully describing laminar flow through concentric pipe-within-pipe set-ups, focusing on scenarios where one tube is pressure driven, and the other serves as a lubricant. Both fluid zones are axially unbounded, therefore excluding recirculation, and are connected along longitudinal infinite slits situated on the inner pipe wall, representing fluid–fluid interfaces. Crucially, the viscous interaction along these interfaces is captured by means of a local slip length, for which explicit formulae are provided, allowing a straightforward evaluation. With that, these models provide a full description of the velocity field for slippery concentric pipes, taking into account the viscosity ratio of both fluids and the overall geometry, therefore extending beyond the common assumption of perfect slip applied to superhydrophobic surfaces. Thereby, they enable a precise analysis of the flow, offering important tools to decipher the intricate dynamics of the two coupled fluids within such set-ups. As a result, the insights acquired contribute to the design and optimisation of superhydrophobic and liquid-infused surfaces, with implications for numerous engineering applications such as microfluidic contactors or drag reduction. The analytical models are in excellent agreement with numerical simulations, thus confirming the selected approach. Therefore, our study further illustrates an effective methodology to derive additional analytical models through the presented mathematical techniques, which can serve as a useful template for modelling such surfaces.
This comment examines the rapidly evolving ecosystem of historical research data in the United Kingdom, where cultural heritage collections are increasingly digitised, commercialised and fragmented. Historians face growing challenges in discovering, accessing and reusing data as resources move behind paywalls, and repositories remain scattered, without a national infrastructure to ensure long-term preservation or discoverability. Drawing on examples from major digital initiatives, we analyse the life cycle of historical research data and highlight the complex interplay of commercial, institutional and scholarly interests that shape access. We distinguish three types of data that emerge from historians’ typical engagements with digitised collections: derived, enhanced and aggregated data. We argue that historians must actively participate in the practices relating to the creation, maintenance and reuse of such data. This will involve new forms of citation, favouring open datasets, improving digital skills and building communities around shared resources. The comment concludes with proposals to improve discoverability, sustainability and reuse, urging the discipline to establish common standards and infrastructures to secure an equitable data commons for future research.