However, since Zimbabwean authorities introduced vehicle scanners, and barcode scanners were introduced on the South African side at some border crossing points (notably the Beitbridge border crossing), all high-loaded trucks are now scanned
Even on good nights, they might stink it up for a stretch, and on bad ones they could suddenly catch firea trapdoor springs open
The discovery of these genes could, therefore, help improve the nitrogen use efficiency of some types of tobacco, as well as other commercially important crops -- ultimately reducing the need for chemical fertilizers The impact of Burley's lower nitrogen use efficiency on its metabolism and growth means that some plant variants contain increased levels of nicotine, other alkaloids, and nitrites, resulting in higher levels of tobacco-specific nitrosamine (TSNA) compounds in their leaf
Dr Leonie Brose is a senior lecturer at the National Addiction Centre, King's College London