Sökning: "secondary interactions"

Visar resultat 6 - 10 av 307 avhandlingar innehållade orden secondary interactions.

1. 6. Laborativt arbete i grundskolans senare år : lärares mål och hur de implementeras

   Författare :Per Högström; Christina Ottander; Sylvia Benckert; Andreas Redfors; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Case studies; Laboratory manuals; Lab work; Nature of science; Science education; Science classroom; Scientific Inquiry; Secondary school; Teachers; Fallstudier; Grundskolans senare år; Laborativt arbete; Lärare; Naturvetenskapens karaktär; NO-undervisning; Undersökande arbete; Pedgogical work;

   Sammanfattning : Laboratory work is considered important for student achievements in science education. This thesis will contribute with increased knowledge about lab work in science education in Swedish secondary school. LÄS MER

3. 7. Promoting student-to-student interactions in mathematics : a study in a multilingual upper secondary classroom

   Författare :Marie Sjöblom; Malmö högskola; []
   Nyckelord :Matematikundervisning; Problemlösning; Flerspråkighet; Gymnasieskolan;

   Sammanfattning : Th is educational design research study contribute s to understanding s about the impact the complex ity in multilingual upper s e condary mathematics classroom s has on attempts to improv e student - to - student interaction s . The research study was carried out in a cyclic process in three cycles as an intervention to give all students the opportunit y to develop their reasoning and communication abilities in mathematics. LÄS MER

4. 8. Surface Interactions in Powder Injection Moulding

   Författare :Elisabeth Johansson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surfactants; powder injection moulding PIM ; rheology; steel powder; surface interactions; XPS; SIMS; adsorption; surface composition;

   Sammanfattning : Powder Injection Moulding (PIM) is an attractive technique for producing complex components in large quantities my means of powder technology. The process includes mixing powder with a suitable binder, usually a thermoplastic polymer. Because of the large attractive forces between small particles the powder can be agglomerated in the binder. LÄS MER

5. 9. Polymeric Nanoparticles as Carriers for Antimicrobial Peptides : Factors Affecting Peptide and Membrane Interactions

   Författare :Randi Nordström; Martin Malmsten; Per Hansson; Helena Bysell; Erica Wanless; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; antimicrobial peptide; microgel; degradable; nanogel; drug delivery; PEGylation; secondary structure; model membrane; lipid bilayer; neutron reflectometry; ellipsometry; Pharmaceutical Physical Chemistry; Farmaceutisk fysikalisk kemi;

   Sammanfattning : As resistance towards conventional antibiotics is becoming more pronounced, cationic antimicrobial peptides (AMPs) have received considerable attention as possible therapeutic alternatives. Thousands of potent AMPs occur in humans, animals, plants and fungi as a natural part of the immune system. LÄS MER

7. 10. Interactions between Wood Polymers in Wood Cell Walls and Cellulose/Hemicellulose Biocomposites

   Författare :Jasna Stevanic Srndovic; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dynamic FTIR spectroscopy; viscoelasticity; orientation; Norway spruce; protein; glucomannan; xyloglucan; polymer interactions; pectin; imaging FTIR microscopy; primary cell wall; nanocomposite films; dynamic 2D FTIR spectroscopy; xylan; wood fibre; cellulose; secondary cell wall; DMA; lignin;

   Sammanfattning : A wood fibre is a complex multi component biocomposite that is hierarchically organised. The arrangement of a wood fibre on the ultrastructural level is highlycontrolled by the interactions between the main structural polymers, i.e. cellulose, various hemicelluloses and lignin, as well as in some parts also pectin and protein. LÄS MER