0	0.09024	model september climate ijo semigroup stability mathematics energy 
1	0.17938	learning students mathematics problem class data ability mathematical 
2	0.04358	police retrieved drug equilibrium population https://en.wikipedia.org/wiki/gun_control use unstable 
3	0.07791	oil lecturer crude conflict creative germination different facet 
4	0.00395	energy ijo motion mechanism space particles caves pns 
5	0.09371	flow ijo fluid mathematics heat group temperature issn 
6	0.0682	polynomial index table ijo mathematics analysis using log 
7	0.17454	ijo cos mathematics solution https://ijojournals.com/index.php/m/index function issn journals