Study finds sustainable farming program helps refugees, immigrants boost health while launching agribusinesses
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Updates every hour. Last Updated: 21-Oct-2026 11:16 ET (21-Oct-2026 15:16 GMT/UTC)
With the rapid development of 6G space–air–ground integrated communication networks, low Earth orbit (LEO) satellite constellations, leveraging their advantages of wide-area coverage and freedom from geographic constraints, have become key infrastructure for achieving global seamless connectivity. However, due to the relative motion among satellites in different orbits, inter-satellite links (ISLs) exhibit periodic dynamic on–off characteristics, among which a portion of the interruptions are predictable topological changes. Conventional Open Shortest Path First (OSPF) protocols compute shortest paths solely based on link distance, without considering link effective duration or bandwidth constraints, rendering them inadequate for adapting to the dynamic topological characteristics of satellite networks. Although fast reroute strategies can address sudden link failures, they consume substantial bandwidth resources and cannot provide protection for all nodes across the entire network. Therefore, how to proactively switch service paths before predictable link interruptions occur, so as to minimize service disruption and resource overhead, has become a core issue in ensuring service continuity in LEO satellite networks.
Communication style and physical appearance shape workplace first impressions more strongly than substantive information such as a person’s resume or what they say.
Nature provides resources to society, and the diversity of species is expected to underpin human economies. So why then are the poorest countries also those that are are richest in wildlife and contain a high number of different species? According to new research, the reason is that colonial exploitation of that biodiversity by now-rich countries created poverty legacies that still persist today.
The research team, from Trinity College Dublin, University of Bern, Swiss Federal Institute for Aquatic Science and Technology, and the Wyss Academy for Nature, assessed datasets from 168 countries, which included World Bank poverty statistics, biodiversity records, governance indicators, colonial history, and protected-area coverage. The headline finding was that the regions most targeted by colonial powers were generally those richest in biodiversity, which has contributed to the modern structures of poverty.