Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Simulation of ratio of old to young people in countries like Poland

Stauffer D., Kułakowski K.

Bio-Algorithms and Med-Systems

2008

Vol. 4, no. 7

19--23

Countries like Poland with a recent sharp drop in birth rates still have some time to prepare for the problems of an ageing society. After the year 2030 they can become increasingly serious.

Why everything gets slower?

Stauffer D., Kułakowski K.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2003

Vol. 7, No 2

257-262

A social system is represented by the Barabasi-Albert model. At each node of the graph, an Ising spin is placed, S=š1, with antiferromagnetic interaction between connected nodes. The time to reach equilibrium via Glauber kinetics does not depend on system size. The average energy associated with the rare spin flips in equilibrium oscillates with the number m of edges of new nodes. The conclusions are illustrated with events from recent European history, where after some strong change a rather immobile society evolved.