Vultures in the Gyps genus are declining globally. Multiple threats related to human activity have caused widespread declines of vulture populations in Africa, especially outside protected areas. Addressing such threats requires the estimation of foraging ranges yet such estimates are lacking, even for widespread (but declining) species such as the African white-backed vulture (Gyps africanus)....

The major advantages of blockchain based cryptocurrencies are the independent verifiability of transactions and the anonymity that they allow. Blockchains can also process transactions at much lower cost than banks and credit card companies. On the other hand, the value of cryptocurrencies is quite volatile. In addition, the crypto-ecosystem is not easy to access for many less technologically s...

Emissions of volatile organic compounds (VOCs) and carbonyls from three types of commercially available wallpapers (i.e., PVC-coated, paper-backed, natural material-coated) in Korea were evaluated using a 20 L small chamber. A total of 332 products were tested for emission factors, frequencies of occurrence and composition ratios. Toluene and formaldehyde concentrations were below Korean standa...