A large proportion of dryland trees and shrubs (hereafter referred to collectively as trees)
grow in isolation, without canopy closure. These non-forest trees have a crucial role in …

Background Understanding the geographic distribution of hidden population, such as men
who have sex with men (MSM), sex workers, or injecting drug users, are of great importance …

The success of humans cannot be attributed to language, but it is certainly true that
language and humans are inseparable. Since the first language appeared, we have seen …