Sökning: "Elsa K"

Hittade 2 avhandlingar innehållade orden Elsa K.

  1. 1. Suitability of industrial residues for preventing acid rock drainage generation from waste rock

    Författare :Elsa Nyström; Lena Alakangas; Hanna Kaasalainen; Christian Maurice; Päivi M. Kauppila; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geochemistry; Tillämpad geokemi;

    Sammanfattning : One of the main and most challenging environmental problems related to mining is the generation of acid rock drainage (ARD), a leachate characterized by low pH and elevated concentrations of sulfate, metals, and metalloids formed when sulfide-bearing minerals are subjected to oxygen and water. During the operation of a mine, waste rock is often deposited in heaps and usually left under ambient conditions, enabling sulfides to oxidize. LÄS MER

  3. 2. Leka, lära, öva, arbeta, verkskapa : Elsa Köhler en österrikisk aktivitetspedagog i Sverige

    Författare :Lars Karlsson; Pedagogik; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Elsa Köhler; school-reform; women; activity learning; action research; school reform; Red Vienna; Political and administrative sciences; Varberg; education; Statsvetenskap; förvaltningskunskap;

    Sammanfattning : This thesis is mainly about the life and work of the Austrian teacher and psychologist Elsa Köhler (1879-1940), but also about the work of her followers on the Swedish West coast. It traces the influences of pedagogic progressivism and the Central European school-reform movements, on the Swedish school and pre-school system, during the first half of the 20th century. LÄS MER