Then, you need to be able to identify which journals are peer-reviewed. There are generally four methods for doing this: 1  Limiting a database search to peer-reviewed journals only. 2  Some databases allow you to limit searches for articles to peer reviewed journals only.
A walkie-talkie (more formally known as a handheld transceiver, or HT) is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald L. Hings, radio engineer Alfred J. Gross, and engineering teams at Motorola.
It's time to make keeping in touch fun and personal! Use Marco Polo to communicate with people who matter the most. Marco Polo is a video walkie talkie with memory. Your friend can start chatting with you right away or they can reply later when they have time. You can also look and feel awesome with doodles, make your friends laugh with doodles or funny voices.