| These are, in order of decreasing symmetry, the cubic, hexagonal, tetragonal, trigonal, orthorhombic, monoclinic, and triclinic systems. |
| However, Rayor suspects that for webs with radial symmetry, the answer is a matter of biodynamics. |
| With neat transatlantic symmetry, it is known as the Press Association, PA for short. |
| To break supersymmetry using the F-term, one can add chiral multiplets that transform as singlets under the gauge symmetries in the theory. |
| They usually involve three numbers or, in the case of hexagonal and rhombohedral symmetries, four numbers, one for each crystallographic axis. |
| The well-studied ion channels all have low-order symmetries ranging between twofold and fivefold. |
