Beta-integers were defined as a generalization of integers by Alfréd Rényi in 1957 in the course of his study of expansions of real numbers in non-integer bases. Together with mathematicians, crystallographers are also interested in this unusual structure. They have found out that beta-lattices are in particular convenience for the description of quasicrystals and their diffraction images., Ľubomíra Balková., and Obsahuje bibliografii
Betaglucans are highly conserved structural polysacharids in the cell walls of bacteria, cyanobacteria, algae, seaweed, yeast, fungi, lichens, and some plants, particularly grain. They belong to a group of active natural substances commonly called biological response modifiers (BRM) and play a role as potent immune response stimulators in all multicellular animals. Their effects against infectious diseases and in cancer therapy have been described in many experimental research studies and human case histories but their functional mechanisms have not yet been fully elucidated. and Petr Šíma.
This article looks at Polish women's movements in the context of how women's and social movements are defined theoretically and in the light of the development of the women's movement in Poland historically. It examines how the women's movement fits into Polish society in the light of public opinion on the women's movement, women's rights and issues of equality, also looking at how these views evolved over the 1990s, and the reasons behind them. It explores the different types of women's movements that exist in Poland, differentiating between them in terms of how much they conform to definitions of 'traditional' and 'new' social movements and in terms of the role they play in effectuating change, their relationships with domestic and international organisations, their relationship to the Catholic Church, their strategies, their formal and informal nature, and other distinguishing criteria.