शुद्ध अनुसंधान (Pure Research या मौलिक अनुसंधान) मुख्य रूप से निम्नलिखित में से किस पर जोर देता है?

'The scientific method is one and same in the branches (of science) and that method is the method of all logically trained mind; the unity of all sciences consists alone its methods, not its material.' Who made this statement?

Which type of research specifically focuses on addressing and ameliorating prevailing immediate situational problems or conditions?