National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
In vivo study of diatom assemblages using low temperature method for ESEM
Tihlaříková, Eva ; Neděla, Vilém ; Fránková, Markéta
Diatoms are the most species-rich algal group represented by 12 000 described species and are recognized as powerful bio indicators and used for water quality monitoring. Diatom taxonomy is predominantly based on the morphology of ornate silicified cell wall called frustule composed of two overlapping parts (thecae). This frustule displays intricate patterns and designs unique to each species. For these studies conventional scanning electron microscopy (SEM) was and still is widely used. This method requires cleaning of diatom frustules in strong acids and peroxides followed by conductive coating.This aggressive procedure removes protoplast and damages delicate structures. Environmental scanning electron microscopy (ESEM) brings advantages of observation of fresh diatom material that are presence of whole intact diatom cells, not only empty diatom frustules, extracellular mucilaginous diatom secrets (e.g. pads, stalks, tubes) and whole diatom assemblages directly in situ together with other algal assemblages (e.g. cyanobacteria or green algae). However, in diatom research, ESEM is used mainly for elimination of conductive coating and observation of these organisms in their native wet state adhered directly on the host plant is not yet common. The ESEM observation of native aquatic samples is usually affected with radiation damage that can be lovered by the use of special methods like the Low Temperature Method (LTM) for the ESEM.
Three years long investigation of fishpond Dehtář - first fishpond in the NETLAKE COST action project
Potužák, Jan ; Šumberová, Kateřina ; Fránková, Markéta ; Fabšičová, Martina ; Ducháček, M. ; Císař, K. ; Duras, J.
In 2014–2016 we monitored basic environmental parameters in the fishpond Dehtář near České Budějovice (Czech Republic) using system of sensors. Among other parametres we studied for instance water chemistry and phyto- and zooplankton community biomass, and species composition. Thank to the method used we recorded strong fluctuations in some of the environmental parameters, parrticularly in oxygen concentrations. Thank to the integration of the auomatic high frequency monitoring using the sensor system along with traditional research methods we were able to interpret the marked ecosystem changes. Several factors participated in the several days long oxygen depletion: warm and calm weather, later interchanged by cold front accompanied with mixing of water column and cloudy sky, fish farming management (high amount of nutrients related to manuring) and changes in biomass of phytoplancton (fast decomposition of high biomass amount of cyanobacteria). Our results enable to prevent similar situations in future, by e.g. lowering of nutrient input.
The Proposal to Extend the Kindergarten
Franková, Markéta ; Zajícová, Ivana (referee) ; Mikulec, Luděk (advisor)
This thesis analyzes the current state of the selected Kindergarten. Based on the analysis made a proposal to extend kindergarten, due to lack of capacity building. The thesis is designed to address deficiencies occurring in kindergarten. It created a proposal to extend the new kindergarten class together with the calculation of the costs incurred and revenues.

See also: similar author names
8 FRANKOVÁ, Martina
5 FRANKOVÁ, Monika
1 FRAŇKOVÁ, Magdalena
2 FRAŇKOVÁ, Marcela
5 FRAŇKOVÁ, Monika
2 Franková, Markéta
8 Franková, Martina
3 Franková, Michaela
5 Franková, Monika
2 Fraňková, Magda
2 Fraňková, Marcela
8 Fraňková, Martina
3 Fraňková, Michaela
2 Fránková, Marie
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