National Repository of Grey Literature 13 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Physics teaching at elementary schools as a basis of specialized education at secondary vocational school
The thesis describes the use of professional examples from plumbing practice in teaching physics. The theoretical part describes the educational field of physics and physics education. There is also created a content and didactic analysis of teaching physics at primary school in terms of vocational subjects in the field of Plumber. The focus of the practical part is to create electronic teaching materials and teaching aids with a focus on the Plumber apprenticeship. It is then investigated how pupils and teachers evaluate the use of professional examples in their lessons and homework.
Výživa a krmení prasat ve výkrmu
This thesis deals with the technology of feeding and pig's nutrition in the fattening. The work is focused on determining the ideal content of necessary nutrients in the feed ratio and also on the suitability of using of different types of feed with regard to the economy and performance of pigs. The work presents a real example of the design of the feed ratio of fattened pigs, including the feed curve and the composition of the feed recipe. Furthermore feeding systems used so far, but also newly introduced and factors that affect the performance parameters in in fattening pigs are described.
Computer assisted physics education
The thesis describes the use of computer and modern didactic techniques in teaching. The theoretical part describes the clarity in teaching and information and communication technologies in the teaching of physics. The didactic analysis of the selected thematic unit "Measuring length" is also included in this thesis, followed by the design of electronic supplements for the teaching of the selected subject. The focus of the practical part is to create materials for home preparation and testing of pupils. It is then investigated how pupils evaluate the use of modern didactic techniques directly in their classrooms and homework.
Baccalaureate Work ?Using Didactic Equipment In Vocational Subjects Teaching? describes various methods of teaching and using didactic engineering in education. Theoretic part describes general aspects of using didactic engineering, teaching methods a and ways how to use didactic engineering in teaching vocational subjects. Practical part finds how students appreciate using modern didactic aids and engineering in education.
The impact of outdoor cattle overwintering husbandry on soil fungal community
The impact of outdoor cattle overwintering husbandry on soil fungal community at upland pastures was investigated. Soils with different intensity of cattle impact were surveyed and the fungal communities were studied by combination of culture-dependent and culture-independent microbiological methods. These analyses showed the substantial shift in biomass, functions, and species composition of fungal communities caused by cattle overwintering.
Soil micromycetes - the potential source of N.sub.2./sub.O in soils
Jirout, Jiří ; Šimek, Miloslav ; Elhottová, Dana
The aim of this paper is to summarize knowledge on potential production of N.sub.2./sub.O by fungi. The processes involved in the global nitrogen cycle are suggested to have an important role in the global environmental changes. Nitrification and denitrification processes cotribute to the production of N.sub.2./sub.O, which belongs to the group of highly active greenhouse gases. Denitrification - the successive reduction of nitrate to N.sub.2./sub. - was supposed to occur only in prokaryotes, but recently the evidence for dissimilation of nitrates and formation of nitrogen oxides and N.sub.2./sub. was reported also in fungi. N.sub.2./sub.O of fungal origin is formed from nitrate or nitrite by reduction under anaerobic or microaerobic conditions. Since fungi showed the capability to use denitrification and oxygen respiration simultaneously under various pO.sub.2./sub. conditions, the N.sub.2./sub.O production by fungi is expected in a wide range of soils with different aeration status.
Microarthropods and microbial participation in oak and beech litter decomposition
Farská, Jitka ; Jínová, Kristýna ; Jirout, Jiří ; Petrásek, Jiří ; Čápová, Lenka ; Rusek, Josef ; Krištůfek, Václav ; Elhottová, Dana ; Starý, Josef
The aim of our work was to describe the impact of a simulated vegetation zone shift to higher altitudes (i) on the quantity and quality of microarthropods and microbial communities, and (ii) on the decomposition rate of allochthonous leaf litter. In November 2002, 480 litterbags filled with oak or beech leaf litter were placed into spruce and beech forests (950 m a. s. l.) on Kleť Mt. (1083 m; Blanský les Protected Landscape Area, South Bohemia). Three different mesh sizes were used for certain soil biota exclusion: > 2 mm, 0.5 mm and 42 μm. Litterbags were sampled after 2, 4, 6, 12, 24 and 36 months of exposure in the field. Litter pH and moisture were determined in the laboratory immediately after retrieval. Soil microarthropods (Oribatida, Gamasida and Collembola) were extracted using Tullgren funnels. Soil bacteria and micromycetes were isolated using the dilution plate method and specific growth media.
Methods for study of soil fungal communities - application on soils disturbed by outdoor cattle husbandry
Jirout, Jiří ; Elhottová, Dana
Fungal organisms comprise a physiologically and genetically diverse group of organisms with the key role in soil ecosystems. However, dynamics, structure, diversity and biomass of populations of soil fungi remain unclear and unknown. Conventional methods in microbiology provide only a glimpse view on the fungal diversity, but the last 15 years have brought many technological advances in community profiling and cultivation independent approaches to studying soil microorganisms. Changes in fungal diversity associated with agricultural management may affect the soil fertility and stability, but the effect of the agricultural practices on fungal complex community is still unclear. Conventional and modern methods in soil microbial ecology were used for study of microbial communities at the pasture used as a cattle overwintering area. Soil environment at this site is relevantly disturbed by cattle impact.

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