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  • Children’s taking depends on relative status and gender

    Children’s taking depends on relative status and gender

    What the study found

    The study found that children’s resource taking changed with relative status, which means whether they were in a winning or losing position compared with another child. When status was low, children took more than half the tokens; when status was high, they did not differ from an equal split. Gender differences appeared only when status was equal.

    Why the authors say this matters

    The authors conclude that the findings indicate early sensitivity to social status and help specify when gender differences in taking emerge. The study suggests that taking is calibrated to socially instantiated relative status rather than performance alone.

    What the researchers tested

    The researchers ran two preregistered studies with 4- to 8-year-old children. In Study 1, children competed in a ‘Where’s Waldo?’ task against a pre-recorded peer and were randomly assigned to win or lose, then chose how many tokens to take from either a prior winner or loser. In Study 2, children played against the clock without a peer competitor and were randomly assigned to succeed or fail before taking tokens from peers.

    What worked and what didn't

    In Study 1, low-status children taking from high-status peers took more than half the tokens, while high-status children taking from low-status peers did not differ from an equal split. Under equal status, boys took more than half, whereas girls did not differ from an equal split. In Study 2, children in the non-social context took more than half of their peers’ tokens.

    What to keep in mind

    The summary does not describe additional limitations beyond the study designs themselves. The findings are based on two preregistered studies with children ages 4 to 8, so the abstract does not support claims beyond that age range or beyond the tasks used here.

    • Children with low relative status took more than half the tokens from another child.
    • Children with high relative status did not differ from an equal split.
    • Under equal status, boys took more than half while girls did not.
    • In a non-social context, children took more than half of peers’ tokens.
    • The authors say taking is calibrated to social relative status, not performance alone.
  • Leadership and institutional capacity shape dropout responses

    Leadership and institutional capacity shape dropout responses

    What the study found

    The review found that dropout is presented as a leadership-mediated, system-level organisational challenge rather than only an individual student problem. It identified four connected themes: leadership theories such as transformational, instructional, and distributed leadership; leadership responses to behavioural and psychosocial risk; data-informed approaches using early warning systems; and the changing role of school leaders as adaptive, collaborative, and technology-supported.

    Why the authors say this matters

    The authors conclude that effective dropout prevention depends on coordinated leadership across system, school, and classroom levels. They say stronger governance alignment, institutional capacity, and early warning systems can support more coordinated action and help address dropout through organisational responsibility rather than deficit-based individual attribution.

    What the researchers tested

    The authors conducted a systematic literature review guided by PRISMA, the Preferred Reporting Items for Systematic Reviews and Meta-Analyses framework. They searched Scopus and Web of Science for peer-reviewed studies published from 2020 to 2025, screened the records against inclusion and exclusion criteria, retained 32 studies, assessed study quality with a Kitchenham-based framework, and synthesised the evidence through integrative thematic analysis.

    What worked and what didn't

    The review reported a shift toward integrated leadership configurations in which schools are described as coordinated organisational actors mediating institutional capacity and student risk. It also found recurring attention to early warning systems, absenteeism, disengagement, and adaptive leadership practices, but it does not report a single intervention as clearly superior in the abstract.

    What to keep in mind

    The review is limited to peer-reviewed English-language studies indexed in Scopus and Web of Science from 2020 to 2025. The authors note that this may exclude earlier foundational work and regionally indexed scholarship, and they call for longitudinal and cross-regional analyses of implementation dynamics.

    • Dropout is framed as a leadership-mediated organisational challenge.
    • Four themes were identified: leadership theories, risk responses, early warning systems, and evolving school leader roles.
    • The review included 32 peer-reviewed studies published between 2020 and 2025.
    • The authors say dropout prevention depends on coordination across system, school, and classroom levels.
    • The evidence base was limited to English-language studies indexed in Scopus and Web of Science.
  • Temperature shaped activity more than diet in snub-nosed monkeys

    Temperature shaped activity more than diet in snub-nosed monkeys

    What the study found

    The study found that monthly temperature was associated with differences in activity budgets among age-sex classes of Rhinopithecus bieti, a black-and-white snub-nosed monkey. Differences in diet across age-sex classes were not significant, and the authors report that activity changed more than diet across colder and warmer months.

    Why the authors say this matters

    The authors suggest that intra-annual variation in temperature may amplify the different physiological demands of age-sex classes, leading to larger changes in activity patterns than in diet composition. The study indicates this may help explain how Asian colobines respond to climate shifts within a year.

    What the researchers tested

    The researchers studied an isolated population of black-and-white snub-nosed monkeys at Mount Lasha in the Yunling Provincial Nature Reserve, Yunnan, China. They used instantaneous and scan sampling over 32 months, from May 2008 to August 2016, to examine associations between temperature, activity budgets, and diets among and within age-sex classes.

    What worked and what didn't

    Adult females spent more time feeding, juveniles spent more time moving and less time resting, and adult males spent less time moving and more time resting than other age-sex classes. The population as a whole spent more time feeding and less time moving and resting in colder months than in warmer months, but the temperature-related effects within age-sex classes were detected for moving and resting, not feeding. The population also spent more time feeding on lichen in colder months than in warmer months, while diet remained stable across age-sex classes.

    What to keep in mind

    The abstract does not describe specific limitations beyond focusing on one isolated population at one site. It also does not provide effect sizes, statistical details, or information about whether the findings apply to other populations or species.

    • Monthly temperature was associated with changes in activity patterns in Rhinopithecus bieti.
    • Diet did not vary significantly across age-sex classes.
    • Adult females fed more, juveniles moved more and rested less, and adult males moved less and rested more than others.
    • Colder months were linked to more feeding and less moving and resting at the population level.
    • Feeding on lichen increased in colder months, even though diet stayed stable across age-sex classes.

  • Age-grouping framework improves mortality forecast accuracy

    What the study found

    The study found that grouping subgroups with similar mortality patterns and borrowing information across them can improve the accuracy of mortality rate forecasts. The proposed framework was reported to perform better than the classical mortality models it extended.

    Why the authors say this matters

    The authors suggest this matters because more accurate forecasts of mortality rates are useful for mortality prediction frameworks. They conclude that using information from similar population–gender–age subgroups can strengthen forecasting performance.

    What the researchers tested

    The researchers extended classical mortality models by adding borrowed information from population, gender, and age subgroups with similar mortality patterns. They evaluated several distance measures together with four linkage methods to capture structural similarities among mortality trajectories, using data from the Human Mortality Database.

    What worked and what didn't

    The proposed approach showed superior predictive performance in the empirical analyses reported in the abstract. The abstract does not specify which distance measures or linkage methods worked best individually, or which alternatives performed less well.

    What to keep in mind

    The available summary does not provide detailed numerical results, specific model comparisons, or limitations. It also does not describe how the method performed across every subgroup or setting beyond the reported empirical analyses.

    • The study extends classical mortality models by borrowing information from similar subgroups.
    • It uses population, gender, and age subgroup mortality patterns.
    • Several distance measures were tested with four linkage methods.
    • Empirical analyses using Human Mortality Database data reported superior predictive performance.
    • The abstract does not give detailed numerical results or limitations.

  • Vietnamese teachers often viewed inclusive education through a binary lens

    What the study found

    The study found that Vietnamese teachers often understood inclusive education through a binary view of normal versus abnormal rather than as an approach centered on student diversity. It also found limited confidence in inclusive education for students with special educational needs and in their progress in mainstream schools.

    Why the authors say this matters

    The authors conclude that inclusive education in Vietnam needs practical pedagogical support and reflexivity-oriented professional training, meaning training that helps teachers critically examine their beliefs and practices. They also suggest that stronger support from school administrators is needed to help teachers enact inclusive education more effectively.

    What the researchers tested

    The researchers proposed a reflexivity cycle model to help educators reflect on their goals and teaching practices. They used in-depth interviews with nine teachers from public and private primary schools in Hanoi, Vietnam, and analyzed the qualitative data using qualitative content analysis from a constructivist interpretive stance.

    What worked and what didn't

    Teachers identified building a fair and disciplined educational environment, and promoting mutual understanding, communication, and trust among stakeholders inside and outside the classroom, as key strategies for inclusive education. However, the study reported a disconnect between national education policies and teachers' actual practices, which the authors link to a lack of training and limited involvement from school administrators.

    What to keep in mind

    The study is based on interviews with nine teachers in Hanoi, so its scope is limited to that setting and group. The abstract does not describe additional limitations beyond the small, local sample.

    • Teachers often framed inclusive education as normal versus abnormal.
    • The study found low confidence in inclusive education for students with special educational needs.
    • Teachers emphasized fairness, discipline, communication, and trust as strategies.
    • The authors link policy-practice gaps to limited training and administrator involvement.
    • The study used interviews with nine primary school teachers in Hanoi.

  • Most black hole mergers may have near-perpendicular spins

    What the study found

    The study finds that the spin-orbit tilt angles of many merging stellar-mass black holes cluster near perpendicular directions, meaning the black holes' spins are often close to 90 degrees from the orbit. For the low-mass bulk of the binary black hole merger population, the authors report that this pattern is well described by a dominant Gaussian component, possibly mixed with a smaller isotropic component (a random spin-direction component).

    Why the authors say this matters

    The authors conclude that, if future detections reinforce these findings, they would challenge any major role for the traditional isolated-binary formation scenario, which tends to produce closely aligned spins. They also say the dominant near-perpendicular component matches expectations from isolated massive stellar triples in the galactic field, where the Lidov–Kozai effect can produce many mergers with spins near perpendicular to the orbit.

    What the researchers tested

    The researchers used hierarchical Bayesian inference, a statistical method that estimates population properties from many observations, with parametric models designed to improve sensitivity to astrophysical formation channels. They analyzed spin-orbit tilt-angle data for merging stellar-mass black holes and focused on the low-mass part of the binary black hole merger population.

    What worked and what didn't

    A model with a dominant Gaussian component peaking at near-perpendicular spin-orbit tilt angles fit the low-mass merger population well, and a small isotropic component could also be present. Models that included a component with spins preferentially aligned with the orbit were disfavored by the current data, with Bayes factors around |Δ ln B| ≈ 1–3, and the aligned contribution was constrained to be likely small, on the order of 1%.

    What to keep in mind

    The abstract says the aligned-spin contribution cannot yet be ruled out with certainty, and large contributions are still possible. The summary available here does not describe other limitations beyond this uncertainty and the need for more detections.

    • The spin-orbit tilt distribution shows a global peak near cos θ ≈ 0, meaning near-perpendicular spin directions.
    • For the low-mass bulk of binary black hole mergers, a dominant Gaussian component fits the spin data well.
    • Models with spins aligned with the orbit are disfavored by current data and appear to contribute only a small fraction, likely around 1%.
    • The authors say more detections could strengthen or change these conclusions.
    • The dominant pattern is said to match expectations from isolated massive stellar triples through the Lidov–Kozai effect.

  • Optimal heat pump share reduced soil imbalance and costs

    What the study found

    The study found that, for the residential building examined in Qingdao, the best overall performance came from a composite energy system in which the ground-source heat pump covered 50% of the winter peak heating load. In that case, soil thermal imbalance was greatly reduced, and the 10-year life-cycle cost was the lowest among the options tested.

    Why the authors say this matters

    The authors conclude that the results provide theoretical and engineering guidance for designing and operating low-carbon energy systems in green residential buildings in cold regions. They also present the findings as relevant to managing soil thermal imbalance in ground-source heat pump systems.

    What the researchers tested

    The researchers studied a two-star green-certified residential building in Qingdao with a high winter heating load, low summer cooling load, a long heating season, and large load fluctuations. They proposed a composite energy system combining a ground-source heat pump, a peak-shaving chiller, and a peak-shaving boiler, and compared three ground-source heat pump shares of winter peak heating load: 45%, 50%, and 52.6%, against a conventional municipal heating scheme. They used load simulation, techno-economic analysis, and carbon emission assessment.

    What worked and what didn't

    The 50% ground-source heat pump scenario performed best overall. It reduced the soil thermal imbalance rate from 34.47% to 7.1%, achieved the lowest 10-year life-cycle cost, and reached an annual carbon emission of 32.58 kgCO2/(m2·a), which the abstract says is a 33% reduction compared with municipal heating. The abstract does not report the detailed outcomes of the 45% and 52.6% scenarios beyond noting that they were compared.

    What to keep in mind

    The study is based on a single case study of one two-star green-certified residential building in Qingdao, so the available summary does not describe broader testing across other buildings or regions. The abstract does not provide detailed limitations beyond the scope of the case and comparison schemes.

    • A 50% ground-source heat pump share gave the best overall performance in the case study.
    • Soil thermal imbalance fell from 34.47% to 7.1% in the optimal scenario.
    • The lowest 10-year life-cycle cost was found in the 50% scenario.
    • Annual carbon emissions were 32.58 kgCO2/(m2·a), 33% lower than municipal heating.
    • The study compared three heat pump shares: 45%, 50%, and 52.6% of winter peak heating load.

  • Weibo sentiment tracked Typhoon Muifa’s precipitation and impacts

    What the study found

    The study found that public opinion on Sina Weibo during Typhoon Muifa was closely linked to the typhoon’s activity. Four main discussion themes appeared: typhoon impact, weather conditions, meteorological information, and disaster response.

    Why the authors say this matters

    The authors conclude that social media can serve as a real-time indicator of localized public sentiment during disasters. They also suggest that official risk narratives play a key role in shaping public attention and that the findings may inform targeted risk communication and emergency management strategies.

    What the researchers tested

    The researchers analyzed 19,417 microblog posts from Sina Weibo about Typhoon Muifa, which made four landfalls in China. They used Latent Dirichlet Allocation (a topic-modeling method for finding themes in text), sentiment analysis, and correlation statistics to examine how public attention and discourse changed with the typhoon.

    What worked and what didn't

    Four dominant topic categories were identified, and personal accounts mainly discussed typhoon impact and weather conditions, while official accounts mainly covered meteorological information and disaster response. Daily total precipitation was strongly positively correlated with the number of microblog posts overall (R 2 = 0.84, q < 0.001), especially in Zhejiang, Shanghai, Shandong, and Liaoning (q < 0.05), and negative sentiment was also highly correlated with rising precipitation, largely through the typhoon impact topic.

    What to keep in mind

    The abstract does not describe limits beyond the study’s focus on Sina Weibo posts during one typhoon event. The findings therefore apply to this specific case study and the available summary does not report additional caveats.

    • The study examined 19,417 Sina Weibo posts about Typhoon Muifa.
    • Four main discussion themes were identified: typhoon impact, weather conditions, meteorological information, and disaster response.
    • Personal accounts were more common in impact and weather discussions, while official accounts dominated meteorological information and disaster response.
    • Daily precipitation was strongly positively correlated with the number of posts overall.
    • Negative sentiment also increased with rising precipitation, mainly in the typhoon impact topic.

  • Marine biogeochemical cycles can shift into alternative regimes

    What the study found

    The study found that marine biogeochemical cycles can enter alternative dynamic regimes, meaning different stable patterns of behavior, when the environment is pushed to extreme values. It also found that these cycles commonly respond reversibly, so the original regime returns when the perturbation is removed.

    Why the authors say this matters

    The authors say this matters because alternative regimes in marine biogeochemical cycles are relevant for understanding climate change impacts and for developing mitigation and adaptation strategies. They also conclude that identifying these regimes may help reveal potentially dangerous paths for the ocean state under future climate conditions.

    What the researchers tested

    The researchers used a state-of-the-art marine biogeochemical model, including a one-dimensional water-column physical-biogeochemical model. They tested extreme changes in environmental conditions such as air temperature, wind velocity, and nutrient input, using sequential simulations, initial condition perturbation, and demographic stochasticity.

    What worked and what didn't

    The model showed that alternative dynamic regimes exist across a wide range of environments and methodologies. A single forcing, nutrient depletion, produced hysteresis, meaning the system's response depended on its prior state, in the planktonic trophic web that supports the biogeochemical cycles. The cycles were usually reversible after perturbations were removed.

    What to keep in mind

    The abstract does not describe specific numerical outcomes or effect sizes. It also does not state detailed limitations beyond noting that the findings come from simulations with a one-dimensional water-column model, though the authors say the large number of simulations and sensitivity analysis support the generality and accuracy of the model even under extreme environments.

    • Marine biogeochemical cycles can shift into alternative dynamic regimes under extreme environmental perturbations.
    • The cycles commonly return to the original regime after the perturbation is removed.
    • Nutrient depletion was the single forcing that induced hysteresis in the planktonic trophic web.
    • The study used a one-dimensional water-column physical-biogeochemical model with many simulations.
    • The authors say the results may help identify dangerous future ocean-state paths under climate change.
  • AAC infill improved ductility more than clay infill in RC frames

    AAC infill improved ductility more than clay infill in RC frames

    What the study found

    The study found that both autoclaved aerated concrete (AAC) blocks and traditional clay masonry infill increased the lateral strength of reinforced concrete (RC) frames by about 60%. AAC infill, however, was better than clay infill at improving ductility, meaning the frames could deform more before failing.

    Why the authors say this matters

    The authors describe AAC as a novel and environmentally friendly material, and they conclude that it performed better than clay infill in ductility enhancement. They also indicate that the reinforced steel used in the frames was intended to enhance seismic resistance.

    What the researchers tested

    The researchers experimentally tested three two-thirds-scale RC frames under cyclic lateral loading, comparing frames infilled with clay bricks and with AAC blocks. They also developed trilinear and quadlinear backbone curves for the clay and AAC infills, respectively, and used numerical macromodels in SeismoStruct and SAP2000 with concentrated and distributed plasticity approaches.

    What worked and what didn't

    Both infill types contributed approximately equally to increasing lateral strength, with about a 60% improvement. AAC infill significantly outperformed brittle clay infill in ductility enhancement. For the numerical work, the multi-strut macromodel captured the hysteresis behavior of the infilled RC frames more accurately than the single-strut model.

    What to keep in mind

    The abstract describes tests on only three two-thirds-scale frames, so the results are based on a small experimental set. It also notes that the accuracy of the more complex multi-strut model depended on parameters such as strut width, post-cracking degradation rate, shear-to-axial stiffness ratio, and strain at peak stress.

    • Both AAC and clay infills increased RC frame lateral strength by about 60%.
    • AAC infill improved ductility more than traditional clay infill.
    • Three two-thirds-scale RC frames were tested under cyclic lateral loading.
    • The multi-strut macromodel matched hysteresis behavior better than the single-strut model.
    • Model accuracy depended on strut width, degradation rate, stiffness ratio, and peak-stress strain.