Sökning: "Helena Andersson"

Visar resultat 11 - 15 av 24 avhandlingar innehållade orden Helena Andersson.

  1. 11. Computer simulation studies for evaluation and optimization of solar, pellets, heat pump combisystems and of bio fuel lift-off properties in a diesel environment

    Författare :Helena Persson; Rolf Egnell; Öivind Andersson; Chris Bales; Högskolan i Dalarna; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioenergiteknik Energi- och Miljöteknik; Bioenergy Technology;

    Sammanfattning : .... LÄS MER

  3. 12. Being and Becoming a Teacher in Initial Literacy and Second Language Education for Adults

    Författare :Helena Colliander; Per Andersson; Song Ee Ahn; Annelie Frelin; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; teacher identity; initial literacy education; second language teaching; adult education; situated learning; cultural capital; läraridentitet; grundläggande litteracitetsutbildning; andraspråksundervisning; vuxenutbildning; situerat lärande; kulturellt kapital;

    Sammanfattning : The aim of the thesis is to explore what being and becoming a teacher of Literacy Education and Second Language Learning for Adults (LESLLA) mean. The study, which applies situated learning theory combined with some Bourdieuan concepts as thinking tools, seeks to depict how the professional identity of LESLLA teachers can be understood from their memberships in different communities of practice. LÄS MER

  4. 13. Mathematical Reasoning : In physics and real-life context

    Författare :Helena Johansson; Mats Andersson; Jesper Boesen; Morten Blomhøj; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Creative mathematical reasoning; Descriptive statistics; Differential item functioning; Figurative context; Imitative reasoning; Mathematical Reasoning Requirements; Mathematics tasks; National tests; Physics tasks; Real-life context; T-test; Upper secondary school; Creative mathematical reasoning; Descriptive statistics; Differential item functioning; Figurative context; Imitative reasoning; Mathematical Reasoning Requirements; Mathematics tasks; National tests; Physics tasks; Real-life context; T-test; Upper secondary school;

    Sammanfattning : This thesis is a compilation of four papers in which mathematical reasoning is examined in various contexts, in which mathematics is an integral part. It is known from previous studies that a focus on rote learning and procedural mathematical reasoning hamper students’ learning of mathematics. LÄS MER

  5. 14. Mathematical Reasoning in Physics Tests : Requirements, Relations, Dependence

    Författare :Helena Johansson; Mats Andersson; Jesper Boesen; Kerstin Pettersson; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mathematical reasoning; imitative reasoning; creative mathematical reasoning; physics tests; physics tasks; upper secondary school; Mantel-Haenszel procedure; Mathematical reasoning; imitative reasoning; creative mathematical reasoning; physics tests; physics tasks; upper secondary school; Mantel-Haenszel procedure.; Mantel-Haenszel procedure;

    Sammanfattning : By analysing and expanding upon mathematical reasoning requirements in physics tests, this licentiate thesis aims to contribute to the research studying how students’ knowledge in mathematics influence their learning of physics. A sample of physics tests from the Swedish National Test Bank in Physics was used as data, together with information of upper secondary students’ scores and grades on the tests. LÄS MER

  7. 15. Communication of life cycle assessment results : life cycle key performance indicators

    Författare :Helena Nydahl; Thomas Olofsson; Anders P. Åstrand; Staffan Andersson; Åsa Wahlström; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Life Cycle Assessment; Monetary Valuation; Climate Impact; Life Cycle Key Performance Indicators; Global Warming Potential; LCA-result communication; Interpretation of LCA-results; climate change; klimatförändringar;

    Sammanfattning : The global warming that we are on track for will result in a severe loss of natural capital leading to significant losses in economic capital when urban infrastructure is destroyed, agricultural productivity declines and poverty spread among other disasters. Climate change due to emissions does not only affect the polluter, the hazardous effects becomes evident on a global level. LÄS MER