Sökning: "activ"
Hittade 3 avhandlingar innehållade ordet activ.
1. Flocculation with Polyelectrolytes in Latex and Microbial Systems
Sammanfattning : Adsorption of cationic polyelectrolytes onto polystyrene latices was studied as function of polymer chemical composition and molecular weight, polymer and surface charge density and ionic strength. The ratio between polymer charges and surface charges was close to one when distances between polymer and surface charges were equal. LÄS MER
2. Tools in and out of sight : an analysis informed by Cultural-Historical Activity Theory of audio-haptic activities involving people with visual impairments supported by technology
Sammanfattning : The main purpose of this thesis is to present a Cultural-Historical Activity Theory (CHAT) based analysis of the activities conducted by and with visually impaired users supported by audio-haptic technology.This thesis covers several studies conducted in two projects. LÄS MER
3. Signing and Singing : Children in Teaching Dialogues
Sammanfattning : The dissertation examines children’s dialogical sense-making in task-oriented teaching activ- ities, the aim of which is to explore children’s values and ideas in musical learning, in order to investigate how musical knowledge is constructed collaboratively through different levels of dialogicality. Hence, the study addresses the organizational resources and values at stake when children take part in pedagogical dialogues. LÄS MER