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Natural restoration of mining sites: Vegetation succession and soil development: A case study from granodiorite quarries and dumps near the town Skuteč
Chuman, Tomáš ; Šefrna, Luděk (advisor) ; Novák, Jan (referee) ; Hradecký, Jan (referee)
Ir !ntroduction Environmenta| impaď caused by mining is considerab|e' The impact of mining on re|ief and landscape character is particularly substantial as could be documented on earth material transfer. While transfer of earth material caused by natural processes (erosion, sedimentation) is about 4 millions of cubic meters per year, anthropogenic transfer is close to 330 millions (Kukal' 2006) and material transfer due to mining represents the greatest proportion' lt is estimated that the surface minera| extraďion already covers 1% of the |and surface (Wa|ker & del Moral 2003). |n the czech Republic the extent of mining sites reached 0,8% in 2006 (Statistical Environmental Yearbook of the Czech Republic 2008). Miningcausesineversib|emodificationofre|ieíremovesvegetationandsoi|cover causing loss of biotopes. on the other hand mining creates new sites in the landscape e'g' water bodies, rock walls and screes. These sites are often unique and contrasting with the surrounding landscape and might harbor specific species afrer mine/quarry abandonment. Traditional approach to restoration was considered to be the restoration (reclamation) of production, whether agricultural or forestry, causing elimination of potential site diversity by morphology adjustment' topsoil application and tree planting or trefoil-grass...
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Borders of Islamic Civilisation
Hradecký, Jiří ; Hnízdo, Bořivoj (advisor) ; Riegl, Martin (referee)
Present thesis deals with the influence of borders of civilization and subcivilization, and its influence on the African Sahel, concretely states Sudan, Chad, Niger and Mali. It defines the basic terms of issues such as borders of civilization and sub civilization, the Sahel and the Islam civilization. It describes the gradual development of each country and highlights the moments that were or could be affected by the influence of these boundaries. In conclusion this work compares each country and seeks to reveal the degree of influence on this area.
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Volatile Substances Determination in Magnolia x Pruhoniciana Extracts.
Rousková, Milena ; Šabata, Stanislav ; Maléterová, Ywetta ; Hradecký, J. ; Hanika, Jiří ; Kaštánek, František ; Šolcová, Olga
Magnolia pruhoniciana is a unique hybrid originated by the crossing of Japanese M. obovata and American M. tripetala. It has been cultivated and grown since the 1950s in the Průhonice park, part of the Institute of Botany of the CAS. However, biologically active substances contained in intensely fragrant blossoms have not been\nsufficiently described, yet. From that reason the research was focused on extraction of the volatile substances from fresh blossoms using various solvents. Samples of magnolia blossom extracts revealed variously rich profiles of volatile substances, depending on the extraction agent used. To obtain information on volatile substances the analytical method GC/HRMS was employed. Magnolia extracts contained a large number of valuable substances such as alkaloids, coumarins, flavonoids, lignans and neolignans, phenyl-propanoids and terpenes have been identified. Obtained extracts possessed a typical magnolia fragrance, which confirmed that the obtained products could be potentially used for cosmetic applications.
Fulltext: content.csg -  PDF
Plný tet: SKMBT_C22019011614380 - PDF
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Supercritical Fluid Extraction: A Green Method for the Isolation of Valuable Substances from the Various Biological Matrices.
Topiař, Martin ; Sajfrtová, Marie ; Šolcová, Olga ; Hradecký, J. ; Hůrková, K. ; Hajšlová, J.
Supercritical fluid extraction (SFE) using carbon dioxide is a sophisticated technology suitable for isolation of un-polar, high value biological active substances from the various biological matrices. In this study, it was used for the extraction of Magnolia x pruhoniciana flowers and Japonochytrium marinum fungus. Results obtained from the SFE were compared with those from conventional extraction methods. A total number of 37 compounds were identified in the magnolia isolate, from which α-pinene (18 % of peak area), cymene (14 % of peak area), β-pinene (13 % of peak area) and humulene (6 % of peak area) were its main components. Yield of valuable free fatty acids DHA and EPA obtained by the SFE of Japonochytrium marinum was more than 1.5 times higher in comparison with organic liquid extraction using mixture of methanol and dichloromethane.
Fulltext: content.csg - PDF
Plný tet: SKMBT_22317120815262 - PDF
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India as an economic superpower and its development since the end of the Cold War
Hradecký, Jiří ; Kučerová, Irah (advisor) ; Parízek, Michal (referee)
This work discusses the change in Indian position in international relations during the Cold War. It is a qualitative case study, which is also dedicated to finding influences that caused the change in the Indian position. Work includes the following sections. The first part describes the theory of international relations relevant to the study of the Indian position within the great power relations. Next part analyzes India's economic development and historical development of India's foreign policy and relations with the most important global actors. The final chapter is a study of global governance institutions and policies of BRICS and its position to the institutions of global governance.
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Borders of Islamic Civilisation
Hradecký, Jiří ; Hnízdo, Bořivoj (advisor) ; Riegl, Martin (referee)
Present thesis deals with the influence of borders of civilization and subcivilization, and its influence on the African Sahel, concretely states Sudan, Chad, Niger and Mali. It defines the basic terms of issues such as borders of civilization and sub civilization, the Sahel and the Islam civilization. It describes the gradual development of each country and highlights the moments that were or could be affected by the influence of these boundaries. In conclusion this work compares each country and seeks to reveal the degree of influence on this area.
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Natural restoration of mining sites: Vegetation succession and soil development: A case study from granodiorite quarries and dumps near the town Skuteč
Chuman, Tomáš ; Šefrna, Luděk (advisor) ; Novák, Jan (referee) ; Hradecký, Jan (referee)
Ir !ntroduction Environmenta| impaď caused by mining is considerab|e' The impact of mining on re|ief and landscape character is particularly substantial as could be documented on earth material transfer. While transfer of earth material caused by natural processes (erosion, sedimentation) is about 4 millions of cubic meters per year, anthropogenic transfer is close to 330 millions (Kukal' 2006) and material transfer due to mining represents the greatest proportion' lt is estimated that the surface minera| extraďion already covers 1% of the |and surface (Wa|ker & del Moral 2003). |n the czech Republic the extent of mining sites reached 0,8% in 2006 (Statistical Environmental Yearbook of the Czech Republic 2008). Miningcausesineversib|emodificationofre|ieíremovesvegetationandsoi|cover causing loss of biotopes. on the other hand mining creates new sites in the landscape e'g' water bodies, rock walls and screes. These sites are often unique and contrasting with the surrounding landscape and might harbor specific species afrer mine/quarry abandonment. Traditional approach to restoration was considered to be the restoration (reclamation) of production, whether agricultural or forestry, causing elimination of potential site diversity by morphology adjustment' topsoil application and tree planting or trefoil-grass...
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