1 in 4 teens report using mobile food delivery at school
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Updates every hour. Last Updated: 30-Oct-2026 15:16 ET (30-Oct-2026 19:16 GMT/UTC)
Nearly one-quarter of teens reported using mobile food delivery services during school hours and almost half said they use them after school, according to a national survey of over 1,000 U.S. adolescents.
A new study from Carnegie Mellon University and Oxford Saïd Business School finds that the rollout of Uber and Lyft across 167 U.S. metropolitan areas triggered measurable, positive changes in local economies. Published in Nature Cities, the research reveals that the entry of these ride-hailing services consistently boosted regional GDP per capita and increased the availability of flexible, intermittent jobs. While overall employment and wage rates remained stable, the findings provide clear evidence that the gig economy expanded mobility and unlocked new regional economic activity.
A new study of an Israeli hospital's response to the October 7 attacks shows that while years of disaster training enabled staff to continue treating patients under rocket fire, real wartime conditions exposed critical gaps in communication, staffing, logistics, and casualty distribution. The findings offer practical lessons that could help hospitals worldwide prepare for prolonged armed conflicts and other large-scale emergencies.
A fleeting photoinduced electronic state and the subsequent formation of a photoinduced hidden state in a metal–organic framework were captured in just 30 femtoseconds by researchers at Science Tokyo, Tohoku University, and Nagoya Institute of Technology, Japan. By combining ultrafast laser spectroscopy with theoretical analysis, the researchers found that a transient electronic state plays a key role in this process. The findings provide new insights into controlling material properties with light for future applications.
Quasi-zero stiffness (QZS) isolators address the limitations of conventional linear vibration isolators, capable of supporting both static payloads and low-frequency vibration isolation. However, they cannot adapt to payload variations and pose risks for chaotic behavior. In a new study, researchers develop a novel hybrid active control strategy, employing actuators to actively modulate the system’s equilibrium point based on payload variations. This system also eliminates the residual resonant peak, preventing chaotic behavior.