Sökning: "Helen Björk"

Hittade 5 avhandlingar innehållade orden Helen Björk.

  1. 1. Cooperative Lithium-Ion Insertion Mechanisms in Cathode Materials for Battery Applications

    Författare :Helen Björk; Tsutomo Ohzuku; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Li-ion battery; cathode materials; single-crystal; X-ray diffraction; delithiation; superlattice; phase transformation; charge-ordering; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

    Sammanfattning : Understanding lithium-ion insertion/extraction mechanisms in battery electrode materials is of crucial importance in developing new materials with better cycling performance. In this thesis, these mechanisms are probed for two different potential cathode materials by a combination of electrochemical and single-crystal X-ray diffraction studies. LÄS MER

  3. 2. Förskolans pedagogiska praktik som interaktion : Frågor och svar i vardagliga förskoleaktiviteter

    Författare :Sara Dalgren; Polly Björk-Willén; Jakob Cromdal; Helen Melander; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Everyday activities in preschool; the educational practice of preschool; social interaction; ethnomethodology; conversation analysis; question-answer-sequences; educational practice;

    Sammanfattning : The overarching aim of the present study is to elucidate how preschool teachers and children in their interaction accomplish institutional everyday activities in preschool. What is analyzed, more specifically, is how the preschool teachers and children use certain interactional phenomena as resources when they organize their social interaction. LÄS MER

  4. 3. "Jag kan göra matte å minus å plus" : Förskolebarns och pedagogers deltagande i matematiska aktiviteter

    Författare :Gabriella Gejard; Caroline Liberg; Helen Melander; Polly Björk-Willén; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mathematical activities; epistemic stance; geometry; number sense; preschool children; participation; interaction; gesture; ethnomethodology; conversation analysis; Curriculum Studies; Didaktik;

    Sammanfattning : This licentiate thesis examines mathematical activities in a preschool. More precisely, the aim is to create knowledge of how mathematical activities emerge and are constructed in children's interactions with each other and with their teachers. LÄS MER

  5. 4. Barns deltagande och delaktighet : Projektarbete i en förskola med inspiration från Reggio Emilia

    Författare :Anette Hamerslag; Helen Melander; Ann-Carita Evaldsson; Polly Björk Willén; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; children’s participation; interaction; preschool; project work; Reggio Emilia inspiration; deltagande; delaktighet; interaktion; förskola; projektarbete; Reggio Emilia-inspiration; Pedagogik; Education;

    Sammanfattning : This thesis explores children’s and pedagogues’ participation in project work in a Swedish preschool inspired by the pedagogical philosophy of Reggio Emilia and its associated participatory agenda. The overall aim is to investigate how children are involved in the shaping of project work in everyday interactions. LÄS MER

  7. 5. Spegling och skapande : En studie i Lena Cronqvists "Målaren och hennes modell"

    Författare :Nina Weibull; Tomas Björk; Margaretha Lagerlöf; Anette Göthlund; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Self-portrait; Mirror; Creativity; Nude; Gaze; Gender; Paraphrase; Psychoanalysis; Primary Process Thinking; Border Object ; Mother s Body; Identity; Ambiguity; Androgyny; Alchemy; Vanity; Narcissus; Medusa; Freud; Lacan; Klein; Irigaray; Modersohn-Becker; Matisse; Kahlo; Helen Chadwick; Art; Konstvetenskap;

    Sammanfattning : For their self-representation painters are referred to the use of existing codes of representation. These codes can be modified by displacement of conventional meaning. In the historically central discourse of the figure of the artist, the model functions as a complementary aspect of the painter. LÄS MER