Power grids to epidemics: study shows small patterns trigger systemic failures
Peer-Reviewed Publication
Updates every hour. Last Updated: 27-Apr-2026 11:16 ET (27-Apr-2026 15:16 GMT/UTC)
New research shows that small clusters of interacting units – “motifs” – can disproportionately trigger sudden changes in complex systems. In ecological networks, interactions among just two or three species can explain large, unexpected system responses. These motifs act as amplifiers, making minor disturbances cascade into major effects. Recognizing such critical clusters helps explain why ecosystems, power grids, supply chains, and social networks can collapse or surge unpredictably, offering a potential pathway to forecast and mitigate cascading failures across diverse networks.
A new study from Bar-Ilan University is shedding light on a long-overlooked social group in archaeology: the elderly. While research on women and children has flourished in recent decades, older adults have remained largely invisible, their lives reconstructed primarily through skeletal remains. Now, Bar-Ilan archaeologists present a new and innovative study, identifying the elderly through household artifacts, offering a fresh window into their daily lives and social roles.
The founding of the United States of America has become one of the most polarizing eras in its history, new research finds, just as the country is starting to celebrate its 250th anniversary this year. When asked which social movements and historical figures had the most positive impact on America today, survey respondents differed along racial and ideological lines. But the most unexpected differences were between generations.
A new study reveals that the image of a seamless global youth climate movement is fracturing as activists in the "periphery” feel increasingly sidelined by a Western-centric leadership. By investigating why these local chapters face a "crisis of connection," the research exposes how national security threats, democratic backsliding, and political rifts over issues like the Israel-Hamas war are breaking the "weak ties" that once bound the movement together. The study argues that when a global agenda ignores the differing local realities of its members, the human connection often fails long before the digital one.
Neural synchrony between socially interacting people is known to boost social and emotional connection and communication. Researchers have now shown that mothers who speak English as a second language during play with their bilingual toddlers aren’t less effective at achieving this desired ‘attuning’ of their brains. These results suggest that optimal learning and mother-child bonding don’t require native proficiency.