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Kolbalansen vid olika skötselstrategier för skogen på Tagels fastighet. / The carbon balance at different forest management strategies on Tagel propertyBylund, Anna-Ida January 2015 (has links)
Since the 19th century the concentration of CO2 in the atmosphere hasincreased by 40 percent as an effect of the use of fossil energy sources.Increased concentration of CO2 will likely lead to increased temperature,changes in precipitation, rising sea level and increased frequency of extremeweather like storm events. A step to reduce emissions of CO2 and mitigateclimate change, for the property of Tagel, can be to adopt new silviculturalstrategies and analyse which is the most effective. As a result of that, threescenarios was produced, business-as-usual (BAU), increased set aside landand energy. An introduction of windpower at Tagels estate (property) andeffects on carbon balance was also examined. By using the Heureka systemand LCA-analysis in this study, it showed that the scenario of increased setaside land was the most efficient way to reduce carbon dioxide (CO2)emissions for the analysed period of 100 years. The effect of substitution(replacing for example fossil fuel or energy consuming building materials,with renewable raw material such as biomass) didn’t give the result that waspredicted. It appears that the use of pulpwood is very important, if it goes tothe pulp industry no substitution effect occurs, but if all pulp will be used forbioenergy purposes, the energy scenario will be the best in terms of overallcarbon balance. The stored carbon in tree biomass over and in roots wasaffected by all scenarios. The soil carbon was almost the same for allscenarios. In the future the property of Tagel can still use the alternativeBAU as an effective way to mitigate climate change but then explore thepossibilities to use the pulp for bioenergy purposes instead and to set asidemore land at the property. This study considered to have high credibilitybecause the Heureka-analyses, LCA and the substitution model were carriedout by experts in area of research.
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Fyzikální vzdělávání žáků a učitelů v projektu Heuréka / Physics education of students and teachers in Heureka projectDvořáková, Irena January 2011 (has links)
Title: Physics education of students and teachers in the Heureka project Author: RNDr. Irena Dvořáková Department: Department of Physics Education, Faculty of Mathematics and Physics, Charles University in Prague Supervisor: doc. RNDr. Leoš Dvořák, CSc., Department of Physics Education, Faculty of Mathematics and Physics, Charles University in Prague Abstract: This doctoral thesis is aimed at physics education of students and teachers in the Heureka project. The introductory part concerns the brief outline of the current state of physics education both in the Czech Republic and around the world. The next chapters describe the genesis of the project, characterize its main principles and give several examples of methodological sequences in which the application of these principles is shown. The impact of these ideas on students is illustrated by several school tests and the Lawson test, too. The significant part of this thesis deals with the teacher training in the Heureka project. The methods and forms used are described and the impact is analyzed. The international contacts and their development are mentioned in the closing chapter. Several more examples of materials both for students' work and teachers' seminars are published in the appendices. The DVD with digital recording of one lesson is also attached....
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Nástroje internetového marketingu a jejich aplikace v rámci společnosti Zoot / Internet marketing tools and their application within Zoot companyVýborný, Vojtěch January 2013 (has links)
This Diploma thesis is focused on the Internet marketing tools, which are suitable for the Company aimed at selling consumable goods. These Internet marketing tools are applied within Zoot Company. Diploma thesis is divided in two logical parts, theoretical and practical. Individual tools are introduced and intimately analysed in theoretical part. For all mentioned tools, there is a definition of their advantages, description of the process, how to manage those tools, the process models and the description of the tools for their evaluation. The practical part is based on the theoretical part. This part contains the analysis of the Zoot Company and its competitors and the analysis of Zoot's usage of the Internet marketing tools defined in theoretical part. The end of the practical part contains recommendations, how to improve the Internet marketing tools management. Main benefit of the theoretical part is the framework of Internet marketing tools, which are suitable for the Company aimed at selling consumable goods and their process adaptation. The benefit of the practical part is the intimate analysis of Zoot Company and its usage of the Internet marketing tools from theoretical part together with recommendations how to improve the Internet marketing tools management.
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Analys av läromedel till gymnasiekurs Fysik 1 kopplat till Test of Understanding Graphs in Kinematics (TUG-K)Moberg, Simon January 2020 (has links)
Syftet med den här studien är att lägga en grund för framtida forskning om gymnasie- och universitetsstudents förmåga att tolka kinematikgrafer i Sverige. Det finns ett väl framarbetat bedömningsredskap som kallas "Test of understandinggraphs in kinematics" (TUG-K) som har använts internationellt för att undersöka just detta. Resultaten från dessa studier visar att generellt så har elever på många platser i världen svårt med just tolkning av kinematikgrafer. För att kunna närmare granska hur läget ser ut i Sverige så har vi i denna studie översatt TUG-K och TUG-K2 till svenska. Internationell forskning har översatts och sammanfattats, samt så har tre svenska läromedel tillhörande Fysik 1 på gymnasiet granskats och analyserats för att jämföra vad TUG-K undersöker med vad som tas upp i svenska läromedel. Allt detta för att underlätta för att svenska forskare och fysiklärare ska kunna undersöka elevers förmåga att tolka kinematikgrafer och vilket resultat som kan förväntas från svenska elever som genomför TUG-K. Resultatet i studien pekar mot att svenska läromedel skiljer sig anmärkningsvärt med vad de fokuserar på i tolkning av kinematikgrafer. De undersökta läromedlen går alla igenom och testar beräkning och tolkning av lutning i s-t och v-t grafer, samt area under v-t grafer. Endast en av läromedlen gick igenom area under a-t grafer och samtliga hade mycket få eller inga uppgifter som behandlade area under a-t grafer. När det kommer till att jämföra kinematikgrafer och att tolka rörelser mellan graf och textrepresentation så varjerade det stark mellan läromedlen. Vissa hade ett stort fokus på det men i andra var instruktion och testande av färdigheten nästintill icke existenterande. Framtida forskning i fältet rekommenderas samla in data med de översatta versionerna av TUG-K samt undersöka olika variabler som kan ha påverkan på elevers resultat, såsom använt läromedel och lärarens prioriteringar vid undervisning av kinematikgrafer.
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