The study deals with the role, so-called "white ballots" played in the political development of Czechoslovakia in the years 1945-1948. and Článek zahrnuje poznámkový aparát pod čarou
While fertility rates in Western countries are low and the number of people who will remain voluntarily childless is increasing, more and more couples are seeking medical treatment for infertility. Fertility problems transcend the boundaries of medicine and challenge the traditional positivistic understanding of health and illness and the authority of scientific and objective medicine. The circumstances for coping with infertility are not universal and depend instead on the given society and on cultural values. Studying infertility means studying every important institution of our society: the institutions of marriage and the family, the institution of parenthood, medicine, and so on. While American and other Western social scientists have studied social aspects of infertility for many years, in the Czech Republic the topic remains the domain of medicine. This article focuses on basic concepts employed in the study of infertility and involuntary childlessness in sociology. It presents and summarises relevant concepts such as stigmatisation, social exclusion, identity problems, and gender differences in the response to infertility. It presents the debate over explaining the terms of infertility and (involuntary and voluntary) childlessness. It shows how the position of involuntary childlessness has been changing as the problem has increasingly come to be dealt with in medical terms and as high-tech medical treatments for infertility have been developed. Finally, the article opens up the topic for debate and raises the question of potential methods of research.
Understanding distribution and transport of carbon assimilates and photosynthesis contribution to grain yield in wheat spike is important in assessing the photosynthetic process under stress conditions. In this study, photosynthetic characteristics were evaluated in a pot experiment. Transport of spike photosynthates to grain was demonstrated using 14C isotope tracer technique. Yield and key enzyme activities of C3 and C4 pathways were examined after anthesis in wheat cultivars of different drought resistance. The ear net photosynthetic rate, chlorophyll content of the spike bracts (glume, lemma, and palea), and relative water content slightly decreased under water deficit in drought resistant variety Pubing 143 (Pub) during the grain filling stage, whereas all parameters decreased significantly in drought sensitive variety Zhengyin 1 (Zhe). Grain 14C-photosynthate distribution rate fell by 3.8% in Pub and increased by 3.9% in Zhe. After harvest, the water-use efficiency of Zhe dropped by 18.7% under water deficit. Rubisco activity in ear organs declined significantly under water deficit, whereas activity of C4 pathway enzymes was significantly enhanced, especially that of phosphoenolpyruvate carboxylase and NADP-malate dehydrogenase. Water deficit exerted lesser influence on spike photosynthesis in Pub. Ear organs exhibited delayed senescence. Accumulation of photosynthetic carbon assimilates in ear bracts occurred mainly during the early grain filling and photosynthates were transported in the middle of grain filling. C4 pathway enzymes seem to play an important function in ear photosynthesis. We speculate that the high enzyme activity of the C4 pathway and the increased capacity of photosynthetic carbon assimilate transport were the reasons for the drought tolerance characteristics of ears., S. Jia, J. Lv, S. Jiang, T. Liang, C. Liu, Z. Jing., and Obsahuje bibliografii
The main aim of this article is to present a new interpretation of the decoration of the lateral facade of the Augustinian Church of St Thomas in the Lesser Town of Prague, which was created during the reconstruction of the church by its architect Kilián Ignác Dientzenhofer in the first third of the 18th century. Drawing on recently discovered sources, it provides a new interpretation of the emblematic decoration of the portal of the lateral facade, both in the context of the painted decoration of the church interior and in relation to the social and theological conditions of the time. In particular, it proposes an interpretation of the four metopes in the entablature of the Doric order, for which the author or commissioner of the Baroque rebuilding of the church probably found inspiration in the emblematic album Devises et Emblèmes Anciennes & Modernes by the late 17th-century French writer and emblematist Daniel de La Feuille, on the basis of which the symbolism of these four metopes can be interpreted. The meaning of these four metopes is then related in the context of the entire decoration of the lateral facade of the temple also within the symbolism of the columnar orders, in this particular case the use of the Doric order. As it appears, the entire decoration of the lateral facade was systematically and purposefully chosen by the architect and contains extraordinary Christological symbolism that may be hidden to the modern observer at first glance.