Sökning: "Kemi Andersson"

Visar resultat 1 - 5 av 59 uppsatser innehållade orden Kemi Andersson.

  1. 1. Förskollärarens uppfattningar om kemi i utemiljön : En fenomenografisk intervjustudie.

    Uppsats för yrkesexamina på grundnivå, Karlstads universitet; Karlstads universitet/Institutionen för pedagogiska studier (from 2013)

    Författare :Kristine Jakobsen; Karolina Andersson; [2023]
    Nyckelord :Preschool; chemistry; Phenomenography; Förskola; Kemi; Fenomenografi;

    Sammanfattning : Abstract The purpose of this study is to contribute more knowledge about preschool teacher's perceptions of the outdoor environments as an arena for children’s science learning with focus on chemistry. In the study pre-school teachers' perceptions are central to the work. A qualitative method with semi-structured interviews were applied. LÄS MER

  3. 2. A Quantum Chemical Investigation of Chemical Vapour Deposition of Fe using Ferrocene and Plasma Electrons

    Master-uppsats, Linköpings universitet/Kemi

    Författare :Felicia Andersson; [2023]
    Nyckelord :Quantum chemistry; Ferrocene; Silver; Ag 111 ; Plasma electrons; Surface chemistry; Electronic structure; DFT; Kvantkemi; Ferrocen; Silver; Ag 111 ; Plasmaelektroner; Ytkemi; Elektronstruktur; DFT;

    Sammanfattning : Thin films provide a remarkable asset, as depositing a thin surface layer can completely alter a material’s characteristics and provide new, inexpensive, and valuable properties. In 2020, a new Chemical Vapour Deposition (CVD) approach was developed at Linköping University, using plasma electrons as reducing agents for the deposition of metallic thin films. LÄS MER

  4. 3. Kan psilocybin fungera som en säker och effektiv behandling vid depression?

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)

    Författare :Elisa Andersson; [2023]
    Nyckelord :Depression; psilocybin; serotonin; psykedelika;

    Sammanfattning : Depression is a mental illness that is characterized by a depressed mood, reduced energy levels, loss of interest in activities, and decreased concentration. It is the biggest cause behind the approximately 800 000 suicides committed every year, and one of the largest contributors to global disability. LÄS MER

  5. 4. Inledande utvärdering av epoxibaserad livstidsförlängning av fjärrvärmerör : Relining av kolstål med en polyamidhärdande lösningsmedelsfri epoxi

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för kemi - Ångström

    Författare :Jennifer Andersson; [2022]
    Nyckelord :Relining; Epoxy; District heating; Corrosion; BPA; Glass-transition temperature; Relining; Rörinfodring; Fjärrvärmesystem; Livstidsförlängning; Korrosion; Rost; Epoxi; BPA; Tvärbundna polymerer; Sorption; Diffusion; Glasomvandlingstemperatur; Joniska transportvägar; Friktionsfaktor;

    Sammanfattning : Degradation of steel pipes in district heating systems is often a result of corrosion processes. To maintain the power in the systems the pipes gets replaced when they have been worn-out, resulting in high cost and long service time due to excavation. LÄS MER

  7. 5. mRNA-based pharmaceuticals : A literature study based on current knowledge of mRNA

    Kandidat-uppsats, Uppsala universitet/Institutionen för kemi - Ångström

    Författare :Alicia Andersson; Isabella Åkerfeldt; Amanda Borgenstam; Ellinor Olsson; Adam Nyström; [2022]
    Nyckelord :mRNA-pharmaceuticals; mRNA therapies; mRNA vaccines; mRNA components; mRNA design; and mRNA applications.;

    Sammanfattning : This literature study provides a comprehensive overview of the current knowledge of mRNA-based pharmaceuticals, technologies and applications.  mRNA-based pharmaceuticals have newly been bought into focus as a potential brand-new drug class and many believe that it has the potential to transform areas of medicine. LÄS MER