Sökning: "polarity theory"

Visar resultat 11 - 15 av 18 avhandlingar innehållade orden polarity theory.

  1. 11. Drama i kemisalen : En designbaserad studie av hur kreativt drama kan stödja gymnasieelevers lärande av kemisk bindning

    Författare :Kerstin Danckwardt-Lillieström; Maria Andrée; Margareta Enghag; Marianne Ødegaard; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; naturvetenskapsämnenas didaktik; Science Education;

    Sammanfattning : A major challenge for chemistry education is to develop the students' understanding of chemical bonding. In upper-secondary school, the challenges are commonly expressed as difficulties for students to distinguish between intra and intermolecular bonding and to understand chemical bonding in terms of electronegativity. LÄS MER

  3. 12. Influence of Solvent Composition on Crystal Agglomeration of Paracetamol

    Författare :Eva Ålander; Åke Rasmuson; Jean-Paul Klein; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Kemiteknik; Chemical engineering; Kemiteknik;

    Sammanfattning : Agglomeration is an important phenomenon which often controls the particle size distribution and morphology in the crystallization of organic compounds. In this thesis the influence of solvent composition on crystal agglomeration of paracetamol is investigated. LÄS MER

  4. 13. Studies of Local Interactions between and within Proteins using Site-Directed Labeling Techniques

    Författare :Rikard Owenius; Lawrence J. Berliner; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Proteins are essential participants in virtually all cellular processes. The key to the understanding of the function of a certain protein is a detailed knowledge about its atomic three-dimensional structure. LÄS MER

  5. 14. Clinical Electrocochleography in Menière´s disease

    Författare :Kornel Sass; Lund Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; intrathoracic pressure; perilymphatic fistula; pressure exposure; endolymphatic hydrops; Menière´s disease; reproducibility; specificity; sensitivity; rarefaction click; condensation click; electrocochleography; summating potential; Otorhinolaryngology; audiology; auditive system and speech; Otorinolaryngologi; audiologi; hörsel- och talorganen;

    Sammanfattning : Electrocochleography (ECoG) is an objective method to evaluate cochlear electrophysiology. The recordings are considered to reflect the mechano-electric processes of the cochlea, and can indicate the presence of suspected endolymphatic hydrops. LÄS MER

  7. 15. Slaget om femininiteten : Skolledarskap som könsskapande praktik

    Författare :Monica Söderberg Forslund; Boel Englund; Christina Florin; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; school leadership; gender; principal; discourse analysis; school leadership history; feminist post-structuralism; Education; Pedagogik; pedagogik; Education;

    Sammanfattning : The aim of the dissertation is to highlight how different ideas about gender and gender discourses have created varying conditions for the formation of school leadership in different eras. The empirical material consists of historically documented material in a text-based study and interview material comprising interviews with a total of 18 comprehensive school principals from two interview studies. LÄS MER