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William J Baumol’s theory of contestable markets (1982) holds that there are markets served by a small number of firms, which are nevertheless characterized by competitive equilibria, and therefore, desir...

It is important to approach your options tactically. Universities have very different selection criteria and it is key to apply to those that value your strengths; for instance some put emphasis on the nu...

Diffusion is the movement of particles from an area of high concentration to an area of low concentration (with the gradient). Once the concentration in each area is equal, the overall diffusion rate is 0...

mRNA is one of the 3 types of RNA: the others being tRNA and rRNA. They all play a role in protein synthesis. mRNA stands for messenger ribonucleic acid. It is made by copying a strand of DNA called the t...

The tool that revolutionised the way I learned for A-Level English is one I wish I'd learned earlier. First of all, try to put all pre-conceptions you have of the piece aside. These are useful once you've...