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.
This paper describes the development of a new concept of cutting tools using optical sensors for the measurement of tooled surface extent in the turning operations. After examinational measurements optical sensor was selected and its analysis is dedicated the another part of this work. The basic idea of indirect measurement of cutting tool abrasion is scaning the distance of a component during the cutting. and Príspevok popisuje vývoj nového konceptu rezných nástrojov používajúcich optické snímače pre meranie rozmeru obrobeného povrchu v sústružníckych operáciách. Na základe skúšobných meraní bol zvolený optický snímač, ktorého rozboru je venovaná ďalšia časť práce. Základnou myšlienkou nepriameho merania opotrebenia rezného nástroja je snímanie vzdialenosti obrobku počas obrábania.
The analysis of non-contact optical method of measuring deflection of the bridge structure is described in the article. This method is based on the system of reflective prisms or plates, whose reflectance value is chosen so that the intensity of light reflected from individual prisms or plates is the same. Despite the fact that the proposed method is very simple and easy to implement, it provides very accurate results in comparison with commonly used methods and it also allows measurement of fast-moving events. and V článku je analýzována bezkontaktní optická metoda měření průhybu mostních konstrukcí pomocí soustavy odrazných hranolů nebo destiček, jejichž hodnota odrazivosti je volena tak, aby intenzita světla odraženého od jednotlivých hranolů nebo destiček byla stejná. Navržená metoda je realizačně velmi jednoduchá, poskytuje však velmi přesné výsledky ve srovnání s běžně užívanými metodami a umožňuje měření i rychle probíhajících dějů.