Pure power-law density profiles, 𝜌(r)∝rᵇ⁻³, are classified in connection with the following reference cases: (i) isodensity, b=3, 𝜌= const; (ii) isogravity, b=2, g= const; (iii) isothermal, b=1, v=[GM(r)/r]= const; (iv) isomass, b=0, M= const.

Theoretically speaking, the frame-based and frameless surgical localization system should have similar clinical application accuracy.

The laplas and the two flag bearers followed Divié all around the poto mitan a number of times as he did this.

I sat, but neither heard nor saw: Tho' this was fair, and that was braw, And yon the toast of a' the town, I sigh'd, and said among them a', Ye are na Mary Morison.