Effects that are dependent on the size of the population and regulate the growth of populations are called density-dependent effects.
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Soviet propaganda under Joseph Stalin took a variety of forms and used a number of different techniques. A lot of propaganda placed Stalin along with earlier communist visionaries, like Karl Marx, Joseph Engels, and Vladimir Lenin. This propaganda presented Stalin as the natural successor to these great leaders that were continually praised in Soviet newspapers, schools, and elsewhere in society. Over time, the portrayals of Stalin changed from simple praise, to taking the form of a cult of personality. Soviet propaganda portrayed Stalin as a brilliant and kind, all-knowing figure who would lead the world's people to socialism, calling him the ''Father of Nations.''
The president may dissolve the French National Assembly. The president may refer treaties or certain types of laws to popular referendum, within certain conditions (among them the agreement of the prime minister or the Parliament). The president is the chief of the Armed Forces.
