In a paper published today in the journal Nature, scientists from the Department of Archaeology at MPI-SHH in Germany and Griffith University’s Australian Research Centre for Human Evolution have found that the loss of these grasslands was instrumental in the extinction of many of the region’s megafauna, and probably of ancient humans too.
“Southeast Asia is often overlooked in global discussions of megafauna extinctions,” says Associate Professor Julien Louys who led the study, “but in fact it once had a much richer mammal community full of giants that are now all extinct.”
By looking at stable isotope records in modern and fossil mammal teeth, the researchers were able to reconstruct whether past animals predominately ate tropical grasses or leaves, as well as the climatic conditions at the time they were alive. “These types of analyses provide us with unique and unparalleled snapshots into the diets of these species and
Armor G5 AX6000 12-Stream Multi-Gigabit WiFi 6 Router Delivers the Ultra-Fast, Reliable Wired and Wireless Network Speeds to Support Bandwidth-Intensive Applications including Video Conferencing, Large File Transfers and Dense IoT Environments
Zyxel Networks, a leader in delivering secure, AI- and cloud-powered business and home networking solutions, today announced the launch of Armor G5 AX6000 12-Stream Multi-Gigabit WiFi 6 Router (NBG7815). Armor G5 delivers the high efficiency, fast throughput, and excellent wireless range required to support the increased network performance and bandwidth demands of work-from-home and virtual learning environments.
Designed to provide the high-performance network infrastructure to support video-intensive and IoT-heavy networks, Armor G5 combines a powerful 64-bit 2.2 GHz quad-core processor with WiFi 6 802.11AX technology to deliver wireless speeds up to 6000Mbps (1200Mbps for 2.4 GHz and 4800Mbps for 5GHz). Unlike other AX6000 routers that only support eight WiFi streams, Armor G5 supports 12 WiFi streams, enabling it to
Harsh environments that are inhospitable to existing technologies could now be monitored using sensors based on graphene. An intriguing form of carbon, graphene comprises layers of interconnected hexagonal rings of carbon atoms, a structure that yields unique electronic and physical properties with possibilities for many applications.
“Graphene has been projected as a miracle material for years now, but its application in harsh environmental conditions was unexplored,” says Sohail Shaikh, who has developed the new sensors, together with KAUST’s Muhammad Hussain.
“Existing sensor technologies operate in a very limited range of environmental conditions, failing or becoming unreliable if there is much deviation,” Shaikh adds.
The new robust sensor relies on changes in the electrical resistance of graphene in response to varying temperature, salinity