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For the purposes of trace analysis of 1,4-androstadiene-3,17-dione (ADD), 1,4-androstadiene-3-one-17β-ol (Boldenone) and 17-β-estradiol in water, waste water, soil and for the further phytosterols transformation studies the enolisation-silylation reaction was studied using MSTFA and BSTFA with different catalysts as derivatization reagents. The different reaction conditions and stability of the products was also studied using GC-MS technique.

The study interprets the art historical method developed by Oldřich Stefan in the late 1930s and early 1940s as an amplification of the method of the Vienna School of art history. Stefan was professionally an architect, but during his studies in 1920s he also attended art-historical seminar of Vojtěch Birnbaum, a pupil of Alois Riegl and Franz Wickhoff. Birnbaum at the Charles University in Prague developed Riegl’s method of art history, mostly represented by his notion of a ‘baroque principle’ in the history of architecture, published in 1924. The influence of the Vienna School of art history in Prague was elaborated also by Antonín Matějček, a follower of Max Dvořák and colleague of Birnbaum at the Prague University. The tradition of the continuation of the Vienna School in Czech art historiography is widely researched mostly in connection to the conceptions of Matějček’s students, who influenced Czech art history in the second half of the 20th century, unlike Birnbaum’s students. However, beside Růžena Vacková it was Oldřich Stefan who profoundly connected his art-historical thinking to the Vienna School tradition, mostly to Birnbaum’s and also Dvořák’s thinking – the methodological foundations of his own theory Stefan elaborated in connection with the historical disruption of the known world by the Second World War. How the study suggests, Stefan amplified the methodological assumptions of the Vienna School in order to restore the impaired reality of the advanced 20th century.

This paper deals with stability of stochastic optimization problems in a general setting. Objective function is defined on a metric space and depends on a probability measure which is unknown, but, estimated from empirical observations. We derive stability results without precise knowledge of problem structure and without measurability assumption. The setup is illustrated on consistency of a $/varepsilon$-$M$-estimator in linear regression model.

The Great Ball Game Hall of Prague Castle, dating from the years 1567–1569 and built for Emperor Maximilian II, presents an exceptional architectural realization. Apart from the representative appearance of the Great Ball Game Hall also its unusual scale is singular: It is roughly twice as long as was the custom and as was recommended by the Trattato del giuoco della palla by Antonio Scaino (Ferrara 1555). The dimensions of the building are linked to the question of how the Great Ball Game Hall was actually used. Archival sources from the time of the reign of Emperor Rudolf II indicate that it was used probably for the pallone game and not for the game of tennis. From the framework given by the historiography of Renaissance sports and recreation evolves the hypothesis that also covered buildings for the pallone game existed – contrary to the dominant opinion that the game was played exclusively outdoors.

Background: A complete genome sequence is an essential tool for the genetic improvement of wheat. Because the wheat genome is large, highly repetitive and complex due to its allohexaploid nature, the International Wheat Genome Sequencing Consortium (IWGSC) chose a strategy that involves constructing bacterial artificial chromosome (BAC)-based physical maps of individual chromosomes and performing BAC-by-BAC sequencing. Here, we report the construction of a physical map of chromosome 6B with the goal of revealing the structural features of the third largest chromosome in wheat. Results: We assembled 689 informative BAC contigs (hereafter reffered to as contigs) representing 91 % of the entire physical length of wheat chromosome 6B. The contigs were integrated into a radiation hybrid (RH) map of chromosome 6B, with one linkage group consisting of 448 loci with 653 markers. The order and direction of 480 contigs, corresponding to 87 % of the total length of 6B, were determined. We also characterized the contigs that contained a part of the nucleolus organizer region or centromere based on their positions on the RH map and the assembled BAC clone sequences. Analysis of the virtual gene order along 6B using the information collected for the integrated map revealed the presence of several chromosomal rearrangements, indicating evolutionary events that occurred on chromosome 6B. Conclusions: We constructed a reliable physical map of chromosome 6B, enabling us to analyze its genomic structure and evolutionary progression. More importantly, the physical map should provide a high-quality and map-based reference sequence that will serve as a resource for wheat chromosome 6B.

Facultative paedomorphosis is an environmentally induced polymorphism that is well known for many caudate species including newts. Although facultative paedomorphosis has been documented in some smooth-newt populations, records of entirely paedomorphic populations outside the Balkans are limited. Here we present the first evidence of a paedomorphic population of the smooth newt in the Czech Republic with discussion of potential causes that need to be further tested. Acta Herpetologica, Vol 8 No 1 (2013)

The ALICE Collaboration has measured the energy dependence of exclusive photoproduction of J/psi vector mesons off proton targets in ultra-peripheral p-Pb collisions at a centre-of-mass energy per nucleon pair =5.02 TeV. The e+e- and mu+mu- decay channels are used to measure the cross section as a function of the rapidity of the J/psi in the range -2.5

The new mineral theuerdankite, ideally Ag3AsO4, was found in the Alter Theuerdank Mine, Beerberg, St. Andreasberg, Goslar District, Lower Saxony, Germany. Theuerdankite occurs as aggregates of anhedral grains up to 3 mm in size, growing in cavities of strongly supergene-weathered material consisting of native silver and chlorargyrite (but with calcite present). In this work the mineral's structure and its properties were studied and the results are presented.

Volatile organic compounds (VOC) emitted in industrial gases can be eliminated applying the catalytic total oxidation. We found high catalytic activity of the Co-Mn-Al mixed oxides, obtained by heating of the coprecipitated layered double hydroxide (LDH) precursor, in the ethanol total oxidation [1]. Activity of this catalyst was remarkably increased by addition of small amount of the potassium promoter. The catalysts prepared by pelletizing the powdered material contained high amounts of expensive cobalt, which was not fully utilized in the catalytic reaction. Therefore, we focused on preparation of supported catalysts with lower concentration of active components placed exclusively in the outer shell of the support pellets. In the present study, we applied the method of impregnation using acidic solution of metal salts in combination with a support having basic properties that could limit penetration of active components into the support pellets.