|
|
Adsorption of organic compounds onto activated carbon in water treatment process
Kopecká, Ivana
The dissertation thesis focuses on the application of activated carbon for the removal of low molecular weight algal organic matter (AOM) produced by phytoplankton during drinking water treatment, as well as on the effect of AOM on adsorption of anthropogenic micropollutants contained in raw water. The results of this study have been published in international peer-reviewed journals in 4 papers and in 2 conference contributions. The efficiency of AOM removal was studied in laboratory equilibrium and kinetic experiments using different types of granular activated carbon and cellular peptides with molecular weight < 10 kDa produced by cyanobacterium Microcystis aeruginosa. It has been previously confirmed that these peptides are removed with difficulty during the conventional water treatment based on coagulation/flocculation processes and therefore, other methods need to be applied for their restriction. The effect of solution properties on peptide adsorption was assessed by the tests at different pH values and at variable ionic strengths. The negative impact of peptides on the adsorption of organic micropollutants present in raw water was simulated using competitive adsorption experiments with herbicides alachlor and...
|
|
|
Adsorption of organic compounds onto activated carbon in water treatment process
Kopecká, Ivana ; Pivokonský, Martin (advisor) ; Benešová, Libuše (referee) ; Janda, Václav (referee)
The dissertation thesis focuses on the application of activated carbon for the removal of low molecular weight algal organic matter (AOM) produced by phytoplankton during drinking water treatment, as well as on the effect of AOM on adsorption of anthropogenic micropollutants contained in raw water. The results of this study have been published in international peer-reviewed journals in 4 papers and in 2 conference contributions. The efficiency of AOM removal was studied in laboratory equilibrium and kinetic experiments using different types of granular activated carbon and cellular peptides with molecular weight < 10 kDa produced by cyanobacterium Microcystis aeruginosa. It has been previously confirmed that these peptides are removed with difficulty during the conventional water treatment based on coagulation/flocculation processes and therefore, other methods need to be applied for their restriction. The effect of solution properties on peptide adsorption was assessed by the tests at different pH values and at variable ionic strengths. The negative impact of peptides on the adsorption of organic micropollutants present in raw water was simulated using competitive adsorption experiments with herbicides alachlor and...
|
|
|
Basic population register in relation to administration information systems: Data sharing in public administration Czech republic
Kopecká, Iveta ; Vlasák, Rudolf (advisor) ; Lipková, Helena (referee)
The work analyzes the current status of the basic population register in relation to agenda information systems. The theoretical part is focused on basic registers in general with a particular attention being paid to the population register. The analytical part examines in detail the current status of all configured and implemented processes that have a direct impact on the functionality of the basic population register in relation to agenda information systems and subsequent data sharing in the public administration of the Czech Republic. Attention is focused on the use and provision of reference data through Web services and information system of basic registers. The paper also analyzes the various approaches of agenda information systems of public authorities to basic Population Register and the implementation of sub-projects that have a direct impact on its operation. Evaluation of individual areas assessed is done using a statistical survey.
|
|
| |
|
|
Quality Management in Education
Kopecká, Iva ; Trunda, Jiří (advisor) ; Trojan, Václav (referee)
The main aim of my bachelor thesis is a perception of a quality management by headmistresses of kindergarden. Their opinions and arguments about the quality management of a school and their clarifications. The bachelor thesis is suppose to discover what awareness do the headmistresses of the kindergarden have about opportunities of the quality management. What are their opinions about methods of the quality management and their introducing to a school system. What form of introducing would bring benefits to competitive environment of the kindergardens. The bachelor thesis should bring real description, opinions and stance of the kindergarden's headmistresses on a education system, its quality management, their potential arguments and their reasons. Keywords: Quality, quality management, quality in education, quality of pre-school education, methods of quality management.
|
|
|
Application of analytical methods for analysis of dyes employed in works of art.
Svobodová, Eva ; Bosáková, Zuzana (advisor) ; Kopecká, Ivana (referee) ; Feltl, Ladislav (referee)
Natural organic dyes suffer from degradation during the time. Therefore, the works of art need to be restored and the identification of dyes by analytical methods is important here. The possibilities of using three separation (thin-layer chromatography - TLC, capillary zone electrophoresis - CZE, and micellar electrokinetic chromatography - MEKC) and two spectroscopic (infrared microspectroscopy - IR and Raman microspectroscopy) methods for the identification of red dyes (acaroid, brazil, dragon blood, kamala, logwood, cochineal, madder, lac, and sandalwood) were studied and critically discussed. In TLC, under optimised conditions (silicagel with octadecyl, 80/20 (v/v) MeOH/1% TEA in 0.1 mol·dm-3 acetate buffer, pH 5, and 80/20 (v/v) MeOH/1% TEA in 0.025 mol·dm-3 tetraborate buffer, pH 7 and 9), the stain broadening of sandalwood, logwood, acaroid, dragon blood, and brazil was observed. Carminic acid, haematein and purpurin were not detected. A comparison of CZE and MEKC showed that MEKC was superior as it permits separation of all analytes, using 0.015 mol·dm-3 sodium dodecyl sulfate in 0.01 mol·dm-3 tetraborate buffer, pH 8.5, at a voltage of 20 kV. The developed method was validated and applied to the identification of dyes in Rubia tinctorum, Rubia cordifolia, and in the mycelium of fungi...
|
|
|
Adsorption of pesticides onto granular activated carbon in water treatment process
Kopecká, Ivana ; Hnaťuková, Petra (advisor) ; Pivokonský, Martin (referee)
The diploma thesis is aimed at adsorption processes during the removal of pesticides onto granular activated carbon (GAC) in the process of drinking water treatment. Adsorption onto GAC represents an efficient method for pesticides removal. High adsorption efficiency can be significantly reduced due to the occurrence of natural organic matter (NOM) in raw water, which involves AOM (Algal Organic Matter) produced by phytoplankton. Analogous to NOM, AOM probably affects adsorption of pesticides by two different mechanisms - a direct site competition and pore blockage effect, in dependence on the different molecular weight of particular AOM fractions. Equilibrium batch and kinetic adsorption experiments were performed using two types of GAC (Norit 1240 and Filtrasorb 400) and two pesticides (terbuthylazine and alachlor). In order to examine the effect of AOM on adsorption of pesticides, raw GAC and GAC preloaded by AOM were used. The effect of pH on the competitive adsorption of AOM was also evaluated. A solid phase extraction (SPE) method and gas chromatography with electron capture detection (GC-ECD) were used to determine pesticides in water samples. AOM was characterized using fractionation onto sorptive resins. The representation of apparent molecular weights of AOM proteins was determined by...
|
|
|
Nursing care of the patient in terminal stage
Doležalová, Halina ; Kopecká, Ilona (advisor) ; Gojda, Jan (referee)
Cílem této bakalářské práce je přiblížit problematiku péče o terminálně nemocného. Toto téma jsem si vybrala záměrně už ve druhém ročníku kombinovaného studia na univerzitě. Při své profesi jsem se často setkávala s umírajícími a považovala jsem své znalosti a dovednosti v péči o ně za velmi uspokojivé. Že ten pohled byl spíše slepou profesní pýchou, mi ukázaly přednášky z etiky, filozofie a ošetřovatelství na fakultě. Rozhlédla jsem se a zjistila, že v kraji, kde žiji, není žádné zázemí pro kvalitní paliativní a hospicovou péči a lidé ani netuší, že mají na takovou péči právo. S několika dalšími zdravotníky jsme založili občanské sdružení Hospic pro Liberecký kraj. Díky naší činnosti se stala výstavba hospice jednou z priorit politických představitelů Libereckého kraje a informace o paliativní a hospicové péči se dostala do povědomí obyvatel. Abych získala co nejvíce praktických zkušeností, zúčastnila jsem se krátkodobých stáží v hospicových zařízeních v České republice a využila jsem možnost blíže se seznámit s poskytováním paliativní péče také v Anglii a ve Švýcarsku. Princip fungování zahraničního modelu péče zmiňuji v klinické části práce. Hospic je jen jednou částí v systému poskytování paliativní péče. Aby byla kvalitní paliativní péče skutečně dostupná každému, kdo ji potřebuje, musí se rozvinout...
|
|
|
Assisted reproduction in dogs
Kopecká, Iveta ; Tůmová, Lenka (advisor) ; Šimoník, Ondřej (referee)
The dog is among the largest and longest man domesticated beast and holds in his life indispensable place. To preserve the species is a precondition for its ability to reproduce. To increase the success rate of reproduction contribute in recent decades and methods of assisted reproduction. Among the most common methods of assisted reproduction in dogs include artificial insemination. This can be done in several ways depending on the site deposit seed in genital tract of female (intravaginal, transcervical intrauterine, intratubular insemination). It can be carried out using native, chilled or frozen semen. Insemination process itself affects the success of pregnancy rates. Generally, that is the most successful design insemination with fresh semen intratubular. Another method is assisted reproduction in vitro oocyte fertilization and subsequent embryo transfer. The success of this method is dependent on many factors, among which include the sampling of gametes method of storage, the composition of culture media, mechanisms regulating nuclear oocyte maturation and others. It is evident that the need of further research, leading to the understanding of the molecular mechanisms that control oocyte maturation and embryonic development in dogs. A relatively new method of reproductive biotechnology is somatic cell nuclear transfer into an oocyte depleted own genetic information called cloning. This technology does not achieve major success so far. Methods of assisted reproduction in dogs hinders overall physiology of the reproductive system, but also more difficult method of obtaining oocytes and embryos, and then find the appropriate recipient. The key seems to be to find a more suitable solution for long term storage of gametes. Achieving successful freezing of sperm and oocyte cryopreservation would lead to greater use of reproductive technologies. Studies on assisted reproduction in dogs are among other things contributing to overall understand of reproductive mechanisms. Acquired knowledge may enable the conservation of valuable dog genotypes in vitro.
|
|
| |
guest ::
RSS feed.