Please capitalize where necessary: possibly danish, c. 1720.
A: Possibly Danish, c. 1720.

Please capitalize where necessary: jesus rueda rodriguez looks at the new regulation for ivds, which has been proposed as the replacement for directive 98/79/ec, and provides an industry perspective on the impact of the proposed changes.
A: Jesus Rueda Rodriguez looks at the new Regulation for IVDs, which has been proposed as the replacement for Directive 98/79/EC, and provides an industry perspective on the impact of the proposed changes.

Please capitalize where necessary: free rider 2 track - best track in the world
A: Free Rider 2 Track - best track in the world

Please capitalize where necessary: the gradually increasing weight of the brain and skull in man must have influenced the development of the supporting spinal column, more especially whilst he was becoming erect.
A:
The gradually increasing weight of the brain and skull in man must have influenced the development of the supporting spinal column, more especially whilst he was becoming erect.