This study aims to determine the virtual communication skills of students in Vertebrate Zoology course, subject Reptile Class with example Varanus salvator species. The research was conducted by survey method using an adaptation observation sheet from 2012 Greenstein instrument. Data collection carried out on modified online Problem Based Learning (PBL) Zoom meeting and WhatsApp Group (WAG). Wh...

Current technologies for managing rail traffic such as the Global System Mobile communications Railway (GSM-R) will be no longer available within upcoming years. The European Shift2Rail Joint Undertaking (S2R-JU) proposed Adaptable Communication (ACS) to overcome this problem. In work, we model ACS by abstracting it at Internet Protocol (IP) level, using tunnels datagrams’ transmission a commun...