Crystal structureIn crystallography, crystal structure is a description of the ordered arrangement of atoms, ions, or molecules in a crystalline material. Ordered structures occur from the intrinsic nature of the constituent particles to form symmetric patterns that repeat along the principal directions of three-dimensional space in matter. The smallest group of particles in the material that constitutes this repeating pattern is the unit cell of the structure.
X-ray crystallographyX-ray crystallography is the experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions. By measuring the angles and intensities of these diffracted beams, a crystallographer can produce a three-dimensional picture of the density of electrons within the crystal. From this electron density, the mean positions of the atoms in the crystal can be determined, as well as their chemical bonds, their crystallographic disorder, and various other information.
Deformed workers' stateIn Trotskyist political theory, deformed workers' states are states where the capitalist class has been overthrown, the economy is largely state owned and planned, but there is no internal democracy or workers' control of industry. In a deformed workers' state, the working class has never held political power like it did in Russia shortly after the Russian Revolution. These states are considered deformed because their political and economic structures have been imposed from the top (or from outside), and because revolutionary working class organizations are crushed.
Degenerated workers' stateIn Trotskyist political theory, a degenerated workers' state is a dictatorship of the proletariat in which the working class' democratic control over the state has given way to control by a bureaucratic clique. The term was developed by Leon Trotsky in The Revolution Betrayed and in other works. Trotsky argued that Russia was a genuine workers' state from the 1917 October Revolution until Joseph Stalin's consolidation of power.
Socialist stateA socialist state, socialist republic, or socialist country, sometimes referred to as a workers' state or workers' republic, is a sovereign state constitutionally dedicated to the establishment of socialism. The term communist state is often used synonymously in the West, specifically when referring to one-party socialist states governed by Marxist–Leninist communist parties, despite these countries being officially socialist states in the process of building socialism and progressing toward a communist society.
State socialismState socialism is a political and economic ideology within the socialist movement that advocates state ownership of the means of production. This is intended either as a temporary measure, or as a characteristic of socialism in the transition from the capitalist to the socialist mode of production or to a communist society. State socialism was first theorised by Ferdinand Lassalle. It advocates a planned economy controlled by the state in which all industries and natural resources are state-owned.
