On 1 August 2025, China's GBZ 337–2025 Diagnostic Standard for Occupational Post-Traumatic Stress Disorder came into force.1 For the first time, post-traumatic stress disorder (PTSD) among emergency responders, including police, firefighters and medical personnel, has been formally recognised as an occupational condition, eligible for compensation under the country's occupational injury system. This move marks a significant institutional acknowledgement that psychological trauma can be as disabling and deserving of protection as physical injury. Far from an isolated policy decision, GBZ 337–2025 marks a milestone in decades of evolving scientific understanding, public awareness and policy development, shaped by the lived experiences of natural disasters and public health emergencies in China.

Published in Engineering, this meta-analysis covering 154 papers systematically compares transgenesis (TG) and genome editing (GE) for animal trait improvement. GE delivers larger, wider-ranging gains in growth and disease resistance yet shows taxon-specific effects. Trait enhancements weaken with animal age and in F1 offspring. The findings offer evidence for lab technique refinement and agricultural biotechnology policy-making.

Autonomous vehicles promise greener, smoother urban travel, yet their environmental pros and cons are far more complicated than many assume. This new analysis from Engineering breaks down dual carbon trade-offs: AVs cut traffic emissions via platooning and shared fleets, but heavier electric trucks and repeated vehicle platoons speed up road wear and raise infrastructure carbon costs. It also outlines targeted vehicle, road and policy fixes to balance efficiency gains and infrastructure burdens for sustainable automated mobility.

Drought creates increasing challenges for agriculture: as well as affecting the growth of crops, it also affects interactions with pests. A research team at the University of Göttingen has investigated how different levels of drought affect the susceptibility of sugar beet to damage caused by the beet leaf miner (Pegomya cunicularia) – a fly whose larvae create visible tunnels inside the leaves. The study shows that moderate drought actually promotes the development of the larvae, whilst severe drought has an adverse effect on both plants and pests. The findings were published in the Journal of Experimental Botany.

A team of researchers from Yemen and Saudi Arabia analyzed and compared health security performance (HSP) between Gulf Cooperation Council and non-Gulf Cooperation Council countries within the Eastern Mediterranean Region (EMR) for 2019 and 2021, recognizing the critical role of health security in managing global health threats. The study utilized data from the Global Health Security Index (GHSI) for 2019 and 2021. Key health security priorities were identified using the entropy objective weighting method. The VIKOR (VIseKriterijumska Optimizacija I Kompromisno Resenje) method was employed to rank countries based on overall performance. K-means clustering was applied to group countries with similar health security profiles. Pearson’s and Spearman’s rank correlation coefficients were used to assess relationships between independent HSP indicators and overall performance scores. A significant shift in health security priorities within the EMR was observed between 2019 and 2021, with prevention gaining prominence. Gulf Cooperation Council countries emphasized detection and reporting, while non-Gulf Cooperation Council countries prioritized health systems and prevention. Gulf Cooperation Council countries, particularly Qatar and Saudi Arabia, consistently demonstrated strong HSP. Conversely, non-Gulf Cooperation Council countries facing conflict and instability, such as Yemen, Somalia, and Syria, exhibited weaker performance. Health system capacity, prevention, detection and reporting, and risk environment showed robust correlations with overall HSP. This study underscores the necessity for tailored, adaptive policies to address HSP disparities across regions, highlighting investment in prevention, detection, and reporting. It stresses international collaboration, improved policy implementation, and ongoing research to enhance global health security systems across diverse contexts.

A new study co-authored by University of Notre Dame researcher Mohammad Rashidujjaman Rifat shows how AI can help homeschooling parents build culturally responsive lesson plans that incorporate family heritage and cultural norms alongside age-appropriate educational standards.