scholarly journals Technical condition of sewer networks in the Czech Republic

2021 ◽  
Vol 900 (1) ◽  
pp. 012009
Author(s):  
P Hlustik ◽  
V Singrova

Abstract This article offers a comparison of the detected defects in sewerage systems operated by water companies and by self-operators, determines their quantity and classifies them into individual categories. The determination of the number of the defects at self-operators is evaluated on the basis of performed camera inspections and compared with data provided by the water company.

2021 ◽  
Vol 37 (37) ◽  
pp. 22-42
Author(s):  
Alicja Paluch ◽  
Henryk Spustek

The ever-increasing need for in-depth analysis and quantification of the national power, in particular ‘hard’ and ‘soft’ power-generating factors as well as difficulties in identifying a comprehensive and effective method for scientific determination of the national power, have given rise to research in the indicated scientific issues within this article. The presented considerations aim to define the assumptions for a descriptive sub-model that would enable a comparison of Poland’s power in the economic sphere (which is a component of the non-military sphere) with the power of selected European countries. The research hypothesis is that, among the variety of descriptive variables in the economic sphere of the national power, there is a subset of mutually independent variables, at the same time strongly correlated with the national power, which make it possible to define assumptions for the sub-model of the national power. The steps of the research procedure were carried out using the method of system analysis (multi-criteria comparative analysis) and statistical analysis. The research activities undertaken have shown that the factors that are strongly correlated with the national power in the economic area of the European countries adopted for the analysis are: dynamics of industrial production, private sector credit flows and economic freedom index. The comparative analysis carried out demonstrates that the greatest increase in the economic power in the analysed period took place in Germany (0.68). Slightly smaller growth was recorded in the Czech Republic (0.62) and Poland (0.60), while the lowest value of increase was in Romania (0.23). The conducted qualitative comparative analysis of the economic power of selected European countries allowed to conclude that the independent variables identified are crucial for the formation of the economic power of the analysed countries. At the same time, a fairly strong position of the Czech Republic and Poland in relation to the economic power of Germany was found. The performed quantification of the economic power of the European countries provides a basis for the correct determination of changes in the power distribution of political units, assessment of the power and resources held by the state.


Author(s):  
Hana Mlejnkova ◽  
Katerina Sovova ◽  
Petra Vasickova ◽  
Vera Ocenaskova ◽  
Lucie Jasikova ◽  
...  

The virus SARS-CoV-2, which has caused the recent COVID-19 pandemic, may be present in the stools of COVID-19 patients. Therefore, we aimed to detect SARS-CoV-2 in wastewater for surveillance of SARS-CoV-2 in the population. Samples of untreated wastewater were collected from 33 wastewater treatment plants (WWTPs) of different sizes within the Czech Republic. SARS-CoV-2 RNA was concentrated from wastewater and viral RNA was determined using real-time reverse transcription polymerase chain reaction (RT-qPCR). SARS-CoV-2 RNA was detected in 11.6% of samples and more than 27.3% of WWTPs; in some of them, SARS-CoV-2 was detected repeatedly. Our preliminary results indicate that an epidemiology approach that focuses on the determination of SARS-CoV-2 in wastewater could be suitable for SARS-CoV-2 surveillance in the population.


2008 ◽  
Vol 25 (No. 4) ◽  
pp. 214-220 ◽  
Author(s):  
J. Simonová ◽  
M. Vázlerová ◽  
I. Steinhauserová

In this study, the pathogenic <i>Y. enterocolitica</i> of serotype O:3 was monitored. The serotype is widely spread in Europe and has been linked to human yersiniosis. For the detection of pathogenic strains were used biochemical and serological methods as well as PCR methods based on the identification of virulence genes (<i>ail</i>, <i>rfbC</i>, <i>ystA</i>, <i>yadA</i>, <i>virF</i>). The occurrence of <i>Y. enterocolitica</i> O:3 strains was monitored in slaughter animals from a number of farms in the Czech Republic. A total of 3748 samples were collected coming from pigs (1388), cattle (633), poultry (902), and slaughter facilities (825). Fifty-two <i>Y. enterocolitica</i> O:3 isolates were identified by biochemical and serologic methods, and 53 <i>Y. enterocolitica</i> O:3 isolates were identified by PCR methods (46 isolates from pigs, 2 isolates from poultry, 3 isolates from cattle, and 2 isolates from a poultry slaughtering facility). All isolates of <i>Y. enterocolitica</i> O:3 carried genes <i>ail</i> and <i>rfbC</i>, 83% isolates carried gene <i>ystA</i>, 79% isolates carried gene <i>yadA</i> and 49% isolates carried gene <i>virF</i>. The use of PCR methods based on the identification of <i>ail</i> and <i>rfbC</i> genes provides for a sufficiently specific identification of pathogenic <i>Y. enterocolitica</i> O:3 strains with optimum time consumption compared to biochemical and serological methods. It is not recommendable to use other PCR methods (detection of the <i>ystA, <i>yadA</i>, and <i>virF</i> genes) for the detection of pathogenic <i>Y. enterocolitica</i> strains because those methods are not very specific for the determination of pathogenicity.


2008 ◽  
Vol 53 (No. 9) ◽  
pp. 421-431 ◽  
Author(s):  
K. Ryglová

This paper deals with problems of rural tourism development. The works is focused on researching the situation in the area of rural tourism in the Czech Republic, on understanding the attitudes of entrepreneurial sphere and rural population to this entrepreneurship and mainly on the determination of limiting factors that prevent this form of tourism from a more distinctive development. Rural tourism in the Czech Republic is still in the initiating stage of its development and it is not as developed as in some countries in West Europe. This goal has been reached with the help of primary questionnaire inquiry among business and agricultural subjects in rural areas in the individual regions and the detail results of this questionnaire inquiry are enclosed to the following paper. These identified factors were mainly insufficient financial means and at the same time insufficient state assistance connected with this. Insufficient awareness of this support as well as its inaccessibility for small business appears to be a difficulty, too. From the other obstacles, we can mention the current legislation system, bureaucracy, the state of communication and tourist infrastructure, fears of neighbours’ intolerance and losing privacy and also unfamiliarity and little experience.


2008 ◽  
Vol 56 (11) ◽  
pp. 4092-4095 ◽  
Author(s):  
Lenka Jedličková ◽  
David Gadas ◽  
Pavla Havlová ◽  
Josef Havel

2014 ◽  
Vol 584-586 ◽  
pp. 2462-2465
Author(s):  
Viktor Mican ◽  
Jan Česelský

Securing a good technical condition of the building and the technical equipment is an essential part of the management of each property owner. The buildings form a background for the purpose of building use and indirectly significantly influence the smooth running of the entire operation. Therefore, it is very important for each owner that this background works seamlessly and it is not discussed too often.Within the technical management, the technical condition of the property of the customer is completely organized. The professional approach and modern technical facilities increase the life of the building and thereby inflate the value of assets and level of benefit from it.Property and its environment make a reputation of its owner. Well technically managed property increases convenience for users and is a good sign for those who visit it.


2008 ◽  
Vol 52 (No. 6) ◽  
pp. 149-158 ◽  
Author(s):  
M. Šprysl ◽  
J. Čítek ◽  
R. Stupka ◽  
L. Vališ ◽  
M. Vítek

The objective of this study was to document the accuracy of the classification equipment used in the Czech Republic with respect to measurement errors in lean meat percentage prediction such as point of measurement error, equipment error as well as operator error. To this end, a total of 720 pigs were measured in one abattoir. One can say from the results that the correlations between correct and surrogate measurements of fat depth are high (0.95&minus;0.98), for muscle thickness they are lower ranging from 0.49 to 0.88, and for lean meat percentage they are in the range of 0.85&minus;0.95. The lowest correlation (0.49) was calculated for muscle depth measurement between the 2nd and 3rd last rib when the place of measurement was moved 1 cm in the caudal direction, which influenced the level of the FOM correlation. It was further demonstrated that for the second insertion the differences in lean meat percentage prediction ranged from &minus;6.07% to +9.29%. It was also demonstrated that various instruments provided identical measurements of fat depth (<i>r</i> = 0.57&minus;0.97), while for muscle depth the performance was worse (<i>r</i> = 0.38–0.78), which caused a fluctuation in the prediction of lean meat percentage with differences ranging from &minus;2.56% to +2.81%. It can also be concluded that a high agreement between operators was demonstrated for the determination of lean meat percentage (<i>r</i> = 0.71&minus;0.80).


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