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Visar resultat 1 - 5 av 17 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Organohalogens in coniferous forest soil

    Författare :Olof Hjelm; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : This thesis is focused on naturally produced organohalogens in soil. It was long assumed that organohalogens found in the environment were mainly of anthropogenic origin, but recent research has shown that large amounts of naturally produced organohalogens are stored in terrestrial environments. LÄS MER

  3. 2. Learning and Returning : Return Migration of Swedish Engineers from the United States, 1880-1940

    Författare :Per-Olof Grönberg; Lars-Göran Tedebrand; Jonny Hjelm; Walker D. Wyman; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; History; emigration; return migration; engineers; technology transfer; Sweden; United States; industrialisation; electrical industry; steel and iron industry; mining; engineering industry; Historia; History subjects; Historieämnen; History; historia;

    Sammanfattning : This thesis examines different aspects of international migration and return migration among Swedish engineers – particularly to and from the United States between 1880 and 1940. The social, geographical, and educational backgrounds of these engineers and their role in diffusing technological knowledge in Sweden in addition to being a possible source of technical development during the country’s second industrial breakthrough is of particular interest. LÄS MER

  4. 3. Observationes de nominibus propriis et cognominibus Svecanis, quas venia ampl. ord. philos. Upsal. præside mag. Erico M. Fant ... p. p. Johannes Olavus Hjelm, Sudermannus. In audit. Gust. maj. d. XIX April. MDCCXCIX. H. a. m. s

    Författare :Eric Michael Fant; Johan Olof Hjelm; Eric Michael Fant; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : .... LÄS MER

  5. 4. Local authorities' approaches to standardised environmental management systems

    Författare :Sara Emilsson (Gustafsson); Olof Hjelm; Robert Gordon; Linköpings universitet; []
    Nyckelord :Environment; eco management and audit scheme; Eco-Management and Audit Scheme EMAS ; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The overall aim with this thesis is to create a broader understanding of how the EMS tool works in local authorities. This means to study whether EMS is a useful tool for managing the environmental impact from the local authorities' activities and by highlighting its strengths and weaknesses as a tool. LÄS MER

  7. 5. Five factors for urban sustainability - exploring influences on municipal strategic planning

    Författare :Paul David Fenton; Olof Hjelm; Karolina Isaksson; Linköpings universitet; []
    Nyckelord :Energy and climate strategies; municipalities; stakeholders; strategic planning;

    Sammanfattning : In recent decades, there has been increasing consensus that sustainable urban development is critical to the future of human societies and planetary systems. The effects of population growth and the environmental impacts of human activities are evident around the world, observable not only in the rapid urbanisation of many large cities, but also in small-medium conurbations, rural communities, and even uninhabited areas. LÄS MER