A unified model for black hole X-ray binary jets? -- On the relationship between the jets from X-ray binaries and AGN -- A transition in the accretion properties of AGN -- Jet-disc coupling in the accreting black hole XTE J1118+480 -- Are 3C 120 and other active galactic nuclei overweight microquasars? -- A fundamental plane of black hole activity: Pushing forward the unification scheme -- Magn…