scholarly journals Occurrence of trichothecene mycotoxins in cereals harvested in the Czech Republic

2008 ◽  
Vol 25 (No. 6) ◽  
pp. 339-350 ◽  
Author(s):  
J. Hajšlová ◽  
K. Lancová ◽  
M. Sehnalová ◽  
A. Krplová ◽  
M. Zachariášová ◽  
...  

A large-scale survey of the natural occurrence of trichothecene mycotoxins in major cereals harvested in the Czech Republic was conducted during the years 1999–2001. In total, 198 cereal samples representing various wheat, barley, and rye cultivars were examined for deoxynivalenol (DON) using gas chromatography with electron capture detector (GC-ECD). Four years later, in 2005, the list of target analytes was fairly extended, 65 wheat and barley samples were analysed for seven trichothecene mycotoxins – deoxynivalenol (DON), nivalenol (NIV), fusarenon-X (Fus-X), 15-acetyldeoxynivalenol and 3-acetyldeoxynivalenol (ADONs), HT-2 toxin (HT-2). and T-2 toxin (T-2) by high performance liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). Trichothecenes represented mainly by DON were detected in almost all grain samples, its mean levels were the highest in the year 1999 which was characterised by very humid conditions during the growing season. The maximum concentration set in Commission Regulation EC (No. 856/2005) for DON (1250 µg/kg) in unprocessed cereals was exceeded only in two of all the samples analysed.

Author(s):  
Tetiana Fedorchak

The author investigates political radicalism in the Czech Republic, a rather heterogeneous current considering the structure of participants: from political parties to the extremist organizations. The peculiarity of the Czech party system is the existence, along with typical radical parties, of other non-radical parties whose representatives support xenophobic, nationalist and anti-Islamic statements. This is primarily the Civil Democratic Party, known for its critical attitude towards European integration, and the Communist party of the Czech Republic and Moravia, which opposes Czech membership in NATO and the EU. Among the Czech politicians, who are close to radical views, analysts include the well-known for its anti-Islamic position of the Czech President M. Zeman and the leader of the movement ANO, billionaire A. Babich. Voters vote for them not because their economic or social programs are particularly attractive to the electorate, but because of dissatisfaction with the economic situation in the state. Almost all right populist parties oppose European integration, interpreting it as an anti-national project run by an elite distorted by a deficit of democracy and corruption. Keywords: Czech Republic, right-wing radical political parties, European integration, nationalism.


2015 ◽  
Vol 23 (1) ◽  
pp. 21-33
Author(s):  
Pavel Domalewski ◽  
Jan Baxa

Abstract The factors that were crucial for the construction of administrative buildings in the regional capitals of the Czech Republic are subject to examination in this article. One primary question is whether the development of office construction reflects the qualitative importance of the cities, or whether there are some other regularities in the spatial distribution of construction. To identify the key factors, controlled interviews with experts professionally involved in the construction of administrative buildings were carried out, and these data were then extended as part of a large-scale questionnaire survey with other experts on the issue. The results have confirmed the dominant position of the capital city of Prague in terms of its qualitative importance, as the remaining regional capitals have less than one-tenth of the volume of modern office building areas. The greatest differences in the construction of administrative buildings have been noted in Brno and Ostrava, despite the fact that they exhibit similar characteristics when considered in the light of respondent-determined factors.


2019 ◽  
Vol 10 (3) ◽  
pp. 784-802
Author(s):  
Felipe Martinez

Purpose The purpose of this paper is to present the findings of an empirical research on the leanness of the home services sector in the Czech Republic. The automotive sector provides reference to argue the numerical outcomes. Design/methodology/approach The research uses a specifically designed assessment tool (Lean Index – LI) to determine the sector’s leanness level. Referring to the results from both sectors, the paper draws conclusions about the current leanness level of home services providers. Findings The proposed LI indicates a value of 69.50 per cent for home services providers, whereas the LI for the automotive industry suppliers is 82.88 per cent. This suggests that there are large opportunities for the implementation of lean management in the home services sector. However, the main challenge is to introduce a continuous improvement approach to these companies. Research limitations/implications The sample size limits the generalisation of the research results. However, this paper represents the first empirical attempt to implement a large-scale survey. The results are limited to the Czech Republic. However, parties from other countries have indicated interest to replicate the research. Practical implications This research provides first empirical findings on the possibilities of implementing lean in the home services sector. Future research projects in other sectors will have the opportunity to make use of the LI assessment tool. Originality/value The paper presents the first approach of lean management into the home services sector. It provides valuable information to specialised institutions in the sector about the possibilities of lean management in the sector. It also provides an overview of the sector for practitioners and academics willing to pioneer lean in the sector.


2019 ◽  
Vol 296 ◽  
pp. 01009
Author(s):  
Ekaterina Grakova ◽  
Jan Martinovič ◽  
Kateřina Slaninová ◽  
Kateřina Janurová ◽  
Vojtěch Cima ◽  
...  

The quality of an opt imal solut ion of the Vehicle Rout ing Problem is st rongly depended on the sett ing of the configurat ion parameters of the algorithm. The paper is focused on the int roduct ion of hyperparameter search for solving the Vehicle Rout ing Problem using a HyperLoom plat form for defining and execut ing scient ific pipelines in a dist ributed environment . To give a concrete example, we focused on Periodic Vehicle Rout ing Problem for the waste collect ion. HyperLoom plat form was used to define and execute the hyperparameters sweep pipeline. The heurist ic algorithm was tested on a real benchmark of the waste collect ion in Ostrava, Czech Republic. The aim of our ca se was to effect ively combine the minimizat ion of the total t ravelled distance and the opt imizat ion of the fairness of the routes in terms of the standard deviat ion of a tour length. The waste collect ion problem was very extensive and computat ionally demanding, so it was necessary to use high performance comput ing architecture for test ing a large number of different sett ings of configurat ion parameters. The experiments were run on the supercomputer Salomon operated by IT4Innovations Nat ional Supercomput ing Center in the Czech Republic.


2009 ◽  
Vol 55 (No. 5) ◽  
pp. 250-256
Author(s):  
J. Bartůšková ◽  
J. Homolka

Changes in the land law, which occurred after 1948, still influence the whle Czech countryside to this day. Typical features of Czech agriculture, i.e. the fragmentation of ownership of the agricultural land fund and the high share of leased agricultural land, which is a direct consequence of the socialistic large-scale production, continue even despite extensive legal changes after 1989. The changes in the Czech land law after 1989 brought about not only the legal guarantees for owners but also new problems, which are still necessary to solve. An important tool of the solution of the present Czech agriculture problems is represented by land adjustments. The membership of the Czech Republic in the European Union on one hand led to the simplification of land acquisition for some foreigners, however; on the other hand it has not influenced in principle the structure of landowners. Still in 2008, the questions of the atonement of property injustices are finished yet regarding the churches concerning agricultural and forest land. A new civil code, currently in process, which can influence some legal relations to the land, has not been put forward to the Parliament yet.


Author(s):  
Daria S. Serezhnikova

Experts in the blacksmithing of Ancient Russia have long been interested in iron household items with cutlers’ marks, such as knives and scissors. The research literature has already reviewed similar findings from Moscow, Tver, Torzhok, Pskov, Smolensk and Izborsk. In this study for the first time assembled, described and dated all iron knives and scissors with cutlers’ marks identified in the archaeological collection of Veliky Novgorod. All cutlers marks have been analyzed, and almost all have analogies in medieval Western European material. Almost all types of cutlers’ marks that are represented on Novgorod items are found on knives, and sometimes on swords or falchions found on the territory of Poland, the Czech Republic, Germany, Italy, the Netherlands and England. There are similar cutlers’ marks on the territory of Ancient Russia, but in much smaller numbers. All items marked with the cutlers’ marks are products of Western European production, the old Russian blacksmiths did not practice branding their products. Most items with cutlers’ marks were brought to Novgorod from Poland, the Czech Republic and Germany. Individual items could get to Novgorod and from England through Hanseatic merchants. Items with cutlers’ marks found during excavations in Veliky Novgorod date back to the 13th – first half of 15th centuries.


Author(s):  
Milan Brumovsky

This paper gives a short overview of experimental programs using large scale models/experiments realized in the Czech Republic with the aim to support the reactor pressure components of WWER type reactors. One part of the program was concentrated on reactor pressure vessel components only. It contained flat specimens with defects on one side and models with stress concentrators (nozzles, bolting joints) on the other side. Second part of the program was a part of the LBB (Leak-before-break) project applied to all WWER safety related pipings. Large scale models with defects, located in heterogenous (safe-end) as well as homogenous welds are described.


2021 ◽  
Vol 91 ◽  
pp. 01005
Author(s):  
Simona Hašková

The global outbreak of the COVID-19 and the measures taken, disrupted fundamentally economies around the world. Almost all sectors were affected. The experts have long emphasised the Czech economy’s dependence on the automotive industry. Car producers and companies linked to them have been loaded by severe difficulties after the pandemic outbreak. The article shows one of the constructive ways how to forecast a change in the passenger cars production in the Czech Republic in 2020. Metodologically we lean on a procedure of the fuzzy approach. The prediction itself cannot be derived from the series of historical data of the variables that are related to the target output variable as shown in the fuzzy prediction of GDP for 2018 by this author. Due to the extreme situation caused by pandemic outbreak, the role of expert predictions come intensively into play with their outcomes becoming the set of input data to the fuzzy model. The result of the fuzzy forcast of a change in the cars production in CZ for 2020 shows a greater drop than the official statistical model claims.


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