Search for dissertations about: "Jonas Gunnarsson"

Showing result 1 - 5 of 11 swedish dissertations containing the words Jonas Gunnarsson.

  1. 1. Treatment of abdominal and thoracic aortic aneurysms :  Aspects on epidemiology and surgical outcome

    Author : Kim Gunnarsson; Kevin Mani; Jonas Eiberg; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aortic aneurysm. Ruptured aortic aneurysm; Endovascular aneurysm repair; Open aortic repair; Aneurysm; Outcome; Surgery; Kirurgi;

    Abstract : Aortic Aneurysm (AA) is a life-threatening condition when ruptured (RAA), requiring immediate repair for survival. Since the 50´s, open repair, replacing the diseased vessel with a prosthetic (synthetic) graft, has been the gold standard. READ MORE

  2. 2. Contaminated organic sediments of anthropogenic origin: impact on coastal environments

    Author : Anna Apler; Ian Snowball; Sarah Josefsson; Lovisa Zillén; Magdalena Kuchler; Jonas Gunnarsson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Fiberbank; fiber-rich sediment; metals; persistent organic pollutants; pore water; bottom water; dispersal; sorption; pulp and paper; chemostratigraphy; Anthropocene; Natural Resources and Sustainable Development; Naturresurser och hållbar utveckling;

    Abstract : The Baltic Sea is negatively affected by legacy pollutants such as metals and persistent organic pollutants (POPs) that are known to have adverse effects on living organisms, including, humans and were banned decades ago. This thesis addresses the dispersal of these pollutants from heavily contaminated, cellulose-rich sediments of industrial origin in the Ångermanälven river estuary in northern Sweden. READ MORE

  3. 3. On benthic fluxes of phosphorus in the Baltic Sea proper – drivers and estimates

    Author : Nils Ekeroth; Sven Blomqvist; Per Hall; Volker Brüchert; Brita Sundelin; Jonas Gunnarsson; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Marine Ecology; marin ekologi;

    Abstract : This Thesis focuses on the exchange of phosphorus (P) across the sediment–water interface in the Baltic Sea proper, with particular attention to the influence of bioturbating macrofauna and benthic redox conditions. Benthic P fluxes have major influence on P availability in the water column, which in turn regulates growth conditions for dinitrogen fixating cyanobacteria in the Baltic proper. READ MORE

  4. 4. Sustainability goals combining social and environmental aspects

    Author : Eléonore Fauré; Göran Finnveden; Ulrika Gunnarsson Östling; Alf Hornborg; Jonas Nässen; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Sustainability goals; goal conflicts; trade-offs; environmental justice; backcasting; future scenarios; climate and energy targets.; Hållbarhetsmål; målkonflikter; miljörättvisa; backcasting; framtidsscenarier; klimat och energimål.; Planering och beslutsanalys; Planning and Decision Analysis;

    Abstract : This thesis examines how to take into account both environmental and social sustainability goals to be used in scenarios or in policymaking.In paper I, we select four sustainability goals that have to be fulfilled by 2050 in normative future scenarios for Sweden in a degrowth context. READ MORE

  5. 5. Fate of contaminants in Baltic Sea sediment ecosystems : the role of bioturbation

    Author : Jenny E Hedman; Jonas Gunnarsson; Nils Kautsky; Valery Forbes; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Toxicology; Toxikologi; Marine Ecotoxicology; marin ekotoxikologi;

    Abstract : Aquatic sediments are of major importance for the cycling of environmental pollutants, acting as both sinks and secondary sources of contaminants to the ecosystem. Sediment-living organisms can affect the fate and transport of contaminants through activities like feeding and burrowing, collectively called bioturbation. READ MORE