1 Subjects: “...national nature reserve...”

2 “...On March 19, 2014, the National Academies of Sciences, Engineering, and Medicine held a workshop...”

3 Subjects: “...Chinese national scenic areas...”

4 Subjects: “...national ambient air quality standards...”

5 Subjects: “...Manu National Park...”

6 Subjects: “...national parks...”

7 Subjects: “...national health insurance...”

8 “... Development Goals (SDGs) set by the United Nations (UN). There are lots of challenges to developing modern...”

9 “... in socio-economic dimension, urbanization etc.), in the urban space particularly in developing nations...”