Mendelu Repository
https://repozitar.mendelu.cz:443/xmlui
The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material.2024-03-28T13:27:24ZEvaluation of variability of the content of alpha and beta acids in Czech bittering hop varieties (Humulus lupulus L.)
https://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1862
Evaluation of variability of the content of alpha and beta acids in Czech bittering hop varieties (Humulus lupulus L.)
Nesvadba, Vladimír; Straková, Lenka; Fritschová, Gabriela; Olšovská, Jana; Charvátová, Jitka; Trnková, Sabina
Czech bitter varieties were evaluated between 2010 and 2022. Hop varieties displayed an average content of alpha acids between 10.24% w/w (Agnus) and 13.73% w/w (Gaia). Variability below 15%, proved good stability of alpha acids content in all tested bittering hops. All varieties showed a decrease in the content of alpha acids over a period of 13 years of hop cultivation. The highest content of beta acids was determined in Gaia (7.30% w/w). In contrast, the lowest content of beta acids was found in Rubín (3.73% w/w). The new bitter genotypes Uran and 5304 had an average alpha acid content of 11.56% w/w and 10.82% w/w, respectively. Uran showed an average beta acid content of 5.47% w/w and for the genotype 5304 it was 3.61% w/w. In terms of the alpha/beta acids ratio, the hop varieties can be divided into three groups. The first group included the varieties with an alpha/beta acids ratio below 2, i.e. Vital, Boomerang and Gaia. While Agnus and Uran displayed an alpha/beta ratio slightly above 2. The highest alpha/beta ratio above 3 was found in Rubín and the 5303 genotype.
2023-01-01T00:00:00ZErgonomic approach in tourism for visitors with special needs
https://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1861
Ergonomic approach in tourism for visitors with special needs
Abramuszkinová Pavlíková, Eva; Özdogan, Osman Nuri; Yilmaz, Cihan
The number of people with disabilities has been increasing as a result of ageing population, chronic health diseases and environmental factors such as accidents, natural disasters or conflicts. Disabled people make valuable part of community and their integration into society reflects the level of human development and public awareness. Social responsibility and human rights legislations support the improvement of tourism conditions for visitors with special needs resulting in hotel industry in accessible tourism policies including transport, accommodation, destinations and attractions appropriately meeting their needs. Ergonomic design should be preventive design. Sustainability is assured by ergonomic premises which are safe, pollution free, hygienic and nonhazardous. In ergonomics applications, functional efficiency privails and individuals are able to live in environment which is safe, convenient and healthy. The cooperation of builders, architects and ergonomics designers is essential. This paper presents results of research in hotel sector in Kusadasi, Turkey. The aim was to determine if the hotel facilities are provided to the disabled people, the perceptions of general guests about the disability and their accommodation in disabled rooms. Semi-structured interviews with hotel's department managers were conducted in 9 hotels ranked as 4 and 5 star.
2023-01-01T00:00:00ZUrban Forest Recreation and Its Possible Role throughout the COVID-19 Pandemic
https://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1860
Urban Forest Recreation and Its Possible Role throughout the COVID-19 Pandemic
Bamwesigye, Dastan; Fialová, Jitka; Kupec, Petr; Yeboah, Evans; Łukaszkiewicz, Jan; Fortuna-Antoszkiewicz, Beata; Botwina, Jakub
Urban forests provide benefits in terms of the environment and society. Many people living in urban areas could profit from the recreational services provided by urban forests to alleviate the physical and psychological stresses caused by closure restrictions during the COVID-19 epidemic. However, limited research has been conducted on the role of forest recreation during the COVID-19 lockdown to support future policy decisions regarding such dramatic circumstances. The study aims to investigate the frequency of visitors in the reference Training Forest Enterprise Masaryk Forest Křtiny in Brno, Czech Republic, and to verify if the lockdown led to its intensified use, under the context of weather conditions. Data were collected using a Pyro Box Compact reader and TRAFx Infrared Trail Counter. Regression analysis was performed to determine whether individual weather factors significantly influenced the intensity of forest visitations before and during COVID-19. The number of visits in 2021 during the strict lockdown and post-lockdown periods was significantly higher during spring and autumn than in 2016 and 2017, respectively. The frequency pattern of forest users visibly changed in 2021, and the total number of visits was much higher, even though 2021 had worse weather than the reference years before the pandemic. The results show the recreational use and importance of the forest, especially during the pandemic. This work is a continuation of our previous research with regard to this area, which indicated the importance of forest recreational services for the well-being and health of city dwellers.
2023-01-01T00:00:00ZMesenchymal stem cells of Oravka chicken breed: promising path to biodiversity conservation
https://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1859
Mesenchymal stem cells of Oravka chicken breed: promising path to biodiversity conservation
Svoradová, Andrea; Vašíček, Jaromír; Zmrhal, Vladimír; Venusová, Eva; Pavlík, Aleš; Bauer, Miroslav; Olexiková, Lucia; Langraf, Vladimír; Sláma, Petr; Chrenek, Peter
Mesenchymal stem cells (MSCs) are multilineage cells able to differentiate into other cell types. MSCs derived from bone marrow or compact bones are the most accessible stem cells used in tissue engineering. Therefore, the aim of this study was to isolate, characterize and cryopreserve MSCs of endangered Oravka chicken breed. MSCs was obtained from compact bones of the femur and tibiotarsus. MSCs were spindle-shaped and were able to differentiate into osteo-, adipo-, and chondrocytes under the specific differentiation conditions. Furthermore, MSCs were positive for surface markers such as CD29, CD44, CD73, CD90, CD105, CD146 and negative for CD34CD45 by flow cytometry. Moreover, MSCs demonstrated high positivity of "stemness" markers aldehyde dehydrogenase, alkaline phosphatase as well as for intracellular markers vimentin, desmin, α-SMA. Subsequently, MSCs were cryopreserved using 10% dimethyl sulfoxide in liquid nitrogen. Based on the results from the viability, phenotype and ultrastructure assessment we can concluded that the MSCs were not negatively affected by the cryopreservation. Finally, MSCs of endangered Oravka chicken breed were successfully stored in animal gene bank, thus making them a valuable genetic resource.
2023-01-01T00:00:00Z