|
|
Representation and Symbolic Meaning of Vegetation in Roman and Early Christian Art
Zvířecí, Petra ; Ondřejová, Iva (advisor) ; Bouzek, Jan (referee)
and keywords The thesis discusses the depiction of selected plant species in Roman and Early Christian art and further shortly deals with most considerable elements of vegetable ornaments and its development. The diploma work turns to symbolic meaning of the plants in connection with a religion and mythic tradition. First and second chapter pursue the depiction of herbs and trees (bushes) on mosaics, frescoes and relief-sculpture. In the third part the attention is paid to the significant elements of vegetable ornament: palmette, rosette and acanthus. Sometimes representations of plants from older period are mentioned for the sake of better explanation of their symbolic context (ancient Egypt, Greece). The thesis gathers information from writings of antique authors, in chapters dealing with Christian period from Bible and apocrypha, as well as from modern works related to the problematic. An objective of the thesis is to cover the differences in symbolic meanings of plants after an oncoming of Christianity, to determine, whether those plants were depicted onwards and in which context.
|
|
|
Buddhism, Plants and Environmental Ethics
Kocurek, Jakub ; Holba, Jiří (advisor) ; Heřman, Robin (referee)
The thesis deals with the problem of Buddhist approach to plants through its history and all its lands. Scientific literature and translations of primary sources translated into western languages are the main sources I use. I particularly focus on the question whether Buddhism considers plants as sentient beings and ascribes them the ability to achieve enlightenment. I also deal with pre-Buddhist ideas concerning plants in each particular region. In the case of India I especially focus on Jainism, the historical companion of Buddhism. Furthermore, I put these facts into a broader frame of Buddhist environmental ethics and Buddhist treatment of the natural world. Thus, this paper should also contribute to the discussion about how ecological Buddhism is. In the pre-Buddhist India, plants were believed to be sentient beings and were involved in the cycle of rebirths. This view was accepted by Jains, but Buddhism chose another way. Whereas early parts of the Pali cannon contain rules prohibiting harming plants, later texts explicitly exclude them from the realm of sentience beings. The topic was further dealt mainly by Eastern Buddhism and, on the contrary, mainly overlooked in other regions. Eastern Buddhism, especially in Japan, again ascribed to plants the ability to attain Buddhahood. This doctrine...
|
|
| |
|
|
Microtubule-associated proteins in plants
Benáková, Martina ; Krtková, Jana (advisor) ; Vinopal, Stanislav (referee)
1. Abstract and key words MTs are one of the basic cellular protein structure. Their features and function are influenced and modified by group of other proteins, i.e. microtubule-associated proteins (MAPs). In the last decades, an extensive research on MAPs and their wide range of functions has been carried out. Therefore we are aware of the involvement of some of the MAPs in MT dynamics, other have been shown to have rather structural function. They bundle MTs with various cell structures, such as the other MTs, proteins, organelles, actin cytoskeleton or plasma membrane. Many described MAPs are homologous in the whole eukaryotic domain, for example MAP65 or EB1 (END BINDING 1) family, therefore it is interesting to follow if and how the functions of plant MAPs differ from their animal counterparts. On the other hand, there are many specific MAPs with unique functions in plants, e.g. ATK5 or SPR1 (SPIRAL 1). This Bachelor thesis is a survey on current knowledge of plant MAPs and it makes an effort to present their characteristic and functions in plant cell and organism. Key words: cytoskeleton, microtubules, microtubule-associated proteins, plant cell, growth and development
|
|
|
Topical walks with preschool children oriented to environmental activities
Strašáková, Lenka ; Andreska, Jan (advisor) ; Jančaříková, Kateřina (referee)
STRAŠÁKOVÁ, Lenka. Topical walks with preschool children oriented to environmental activities. [Diploma Dissertation]. Praha: Fakulty of Education University of Praha, 2010. 126 pp. The main goal of this diploma thesis is the global observation of the nature while going out with children at kindergarten. Current curriculum is part of this thesis because kindergarten teachers have to plan and realize all the activities in relation to the recent curriculum. New possibilities for the pedagogical activities are compared as well. In the theoretical part of my thesis, I am dealing with the main issues in relation to the chosen topic. The idea is backed up by available literature. In the practical part of my thesis, I am using questionnaires. The purpose is to find out whether the kindergarten teachers globally plan the observation of the nature in their education programs. The evaluation is included as well. The evaluation should be used to plan the activities which will be further planned and carried out. Key words: child at kindergarten, walk, animals, plants, watching and cognition of nature, program for preschool education
|
|
|
Mathematical models of effects of selected factors on photosnythesis for highschools
Cinibulková, Renata ; Albrechtová, Jana (advisor) ; Tichá, Ingrid (referee)
The goal of this Master thesis was development of teaching materials that are focusing on mastering the fundamentals of mathematical modelling on the examples of photosynthetic processes and influence of selected environmental factors on these processes. Developed models of photosynthetic response to select environmental factors, worksheets, methodical manuals and other supporting materials belong to the teaching materials for secondary schools and serve as a basis of work with models. This teaching materials are aimed to introduce modelling and its significance not only in science but also in education. The present thesis was accomplished on the basis of participation of the Department of Experimental Plant Biology of Faculty of Science of Charles University in Prague in international project NSF within programme GLOBE - The Carbon Cycle. The present thesis is divided into two parts - theoretical part and practical part. The theoretical part includes a literary review and an introduction to the mathematical modelling (in software Stella) that are elaborated considering the teaching purposes and serve as a theoretical background for practical part of present thesis. The chapters that deal with increasing interest in mplementing of modelling in education and with philosophical background of software...
|
|
|
RNA interference in plants
Čermák, Vojtěch ; Kulich, Ivan (referee) ; Fischer, Lukáš (advisor)
The process of RNA interference allows cells to regulate functions of their genes. This process is usually initiated by the presence of double-stranded RNA within a cell. Such double-stranded RNA is diced by a specific protein called Dicer into duplexes of small RNAs, usually 20-25 nucleotides long. Single-stranded small RNAs, released from the duplexes, are the heart of RNA interference and they can be categorize into several groups according to their biogenesis. There are two groups of small RNAs in plants: miRNA and siRNA. Small RNAs can associate with a protein called Argonaut and guide it to the target molecule on the bases of sequence complementarity. The Argonaut-small RNA complex can act on itself or it can interact with other proteins in a wide spectrum of processes. The complex can slice the target mRNA (which can be handled by the sole Argonaut and small RNA), it can suppress translation or it can direct chromatin modifications. The phenomena of RNA interference can be found in almost all Eukaryotes where it can serve many functions, for example it can control cell differentiation, participate in stress responses, direct changes in chromatin and defend the organism against viruses. A diverse set of operating modes of RNA interference can be found in plants, which we are only at the...
|
|
|
Effect of nutrients deficiencies on root architecture and growth of winter wheat
Rattanapichai, W. ; Klem, Karel
The study of the effects of N, P, K deficiencies on root architecture and growth was tested in phenotyping platform with winter wheat (Bohemia variety). The experiment was arranged with 4 treatments: Complete nutrient, Without N, Without P and Without K. The root were grown on the surface of vertically fixed black filter paper sheets (30x60cm), covered from both sides by black plastic sheets (PVC-P). The system was setup with a micro-irrigation channel in the top of sheets to ensure circulation of hydroponic medium as hydroponic system. Eighteen days after transplanting, we took the root images by the standard RGB digital camera. To evaluate the root architecture parameters the "SmartRoot" software was used. The results showed that nutrient deficiency had effect on root architecture of winter wheat. N deficiency increase in total seminal root and lateral root length and root/shoot ratio, while P deficiency resulted in increase of mean root diameter, total root area when compared to the control. N deficiency also decreased root and shoot dry weight and total leaf area. However, nutrient deficiency slightly decreased lateral density. There was a slight effect of K deficiency on root architecture when compared to the complete nutrient application. The increasing of leaf dry weight was related with the increased of root dry weight.
|
|
| |
|
|
Quantification of Elements in Plant Materials by Electrothermal Vaporization Inductively Coupled Plasma Optical Emission Spectrometry
Šerá, Luisa ; Matějková, Stanislava ; Mestek, O.
This paper describes optimization and validation of operating conditions of electrothermal vaporization (ETV) inductively coupled plasma optical emission spectrometry (ICP-OES) method for quantification of Ba, Ca, Co, Cu, Fe, K, Mg, Mn, Na, P, Sr and Zn in plant materials. Besides the optimization of the temperature program, the selection of the gaseous modifier and the spectral wavelengths to be measured, it was studied how the sample quantity affects the result quality of the developed method. During the validation process, the accuracy and precision of the method were checked by analysis of a certified reference material. Limits of detection were estimated by analyses of blank samples. For almost all previously mentioned elements, the method meets requirements commonly applied on analyses by ETV combined with ICP-OES.
|
guest ::
