Sökning: "l andersson"

Visar resultat 11 - 15 av 67 avhandlingar innehållade orden l andersson.

  1. 11. Use and Development of Diffusive Samplers to Analyse the Fate of Polycyclic Aromatic Compounds, Polychlorinated Biphenyls and Pharmaceuticals in Wastewater Treatment Processes

    Författare :Lijana Augulyte; Patrik L. Andersson; Anna Ledin; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bioavailable; biologically activated carbon; PRCs; sampling rate; SPMD; sorption; wastewater treatment; diffusive passive samplers; human pharmaceuticals; municipal sewage treatment plant; organic micropollutants; polycyclic aromatic compounds; PAHs; PCBs; POCIS; Environmental chemistry; Miljökemi;

    Sammanfattning : The efficiency of wastewater treatment systems is commonly measured by the reductions of parameters such as biological oxygen demand (BOD), chemical oxygen demand (COD) and total suspended solids (TSS) and/or reductions in levels of selected macro compounds (e.g. long-chained hydrocarbons and inorganic compounds). LÄS MER

  2. 12. Computational methods for assessing chemical risk : focusing on toxicokinetic modelling in zebrafish (danio rerio)

    Författare :Ioana C. Chelcea; Patrik L. Andersson; Timo Hamers; Jessica Legradi; Stefan Örn; Carolina Vogs; Nynke Kramer; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; PBTK; Toxicokinetics; Endocrine disruptors; bisphenols; zebrafish; embryo; Toxicology; toxikologi;

    Sammanfattning : New chemicals are constantly produced and large data gaps exist on hazards of currently used industrial chemicals, stressing the need for rapid, ethically sound and cost-efficient hazard assessment methods. Traditional methods for effect assessment based on animal testing, do not meet these requirements and thus the toxicology field has been moving towards the development of new approach methodologies which include in vitro approaches but also computational methods. LÄS MER

  3. 13. Shaping urban environments through human selection for plant traits

    Författare :Julie Goodness; Erik Andersson; Thomas Elmqvist; Pippin M. L. Anderson; Sarel Cilliers; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cape Town; cities; ecosystem services; environmental management; functional traits; interdisciplinary; landscaping preferences; residential landscapes; social-ecological system; Stockholm; traits; urban ecology; Kapstaden; städer; kulturella ekosystemtjänster; ekosystemtjänster; miljöförvaltning; funktionella egenskaper; tvärvetenskaplig; anläggningspreferenser; bostadsmiljö; socialekologiska system; Stockholm; växtegenskaper; urban ekologi; Sustainability Science; vetenskap om hållbar utveckling;

    Sammanfattning : Cities, as home to the majority of the world’s people, are significant sites for addressing challenges of achieving sustainability and securing human wellbeing. Urban environments are complex social-ecological systems, and meeting these challenges requires better understandings of the interactions of social and ecological elements. LÄS MER

  4. 14. Persistency, bioaccumulation and toxicity assessment of selected brominated flame retardants

    Författare :Jenny Rattfelt Nyholm; Patrik L. Andersson; Peter Haglund; Mats Tysklind; Walter Vetter; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; persistence; bioaccumulation; toxicity; biodegradation; biotransformation; PBT; read across; soil; earthworm; zebrafish; copepod; BFRs; polybrominated diphenyl ethers; tetrabromobisphenol A; hexabromocyclododecane; hexabromobenzene; 2; 4; 6-tribromophenol; tetrabromobisphenol A; 2-hydroxyethyl ether; 1; 2-dibromo-4- 1; 2-dibromoethyl cyclohexane; Environmental chemistry; Miljökemi;

    Sammanfattning : Brominated flame retardants (BFRs) are chemicals used in e.g. electronic equipment, textiles and plastics for the prevention of fire. Over recent decades, concern has been raised regarding some heavily used BFRs, since the levels in the environment have been increasing. LÄS MER

  5. 15. Intracellular Degradation of Insulin in Pancreatic Islets

    Författare :Monica Sandberg; L.A.Håkan Borg; Stellan Sandler; Arne Andersson; Albert Salehi; Uppsala universitet; []
    Nyckelord :Cell biology; Cellbiologi;

    Sammanfattning : There is a substantial intracellular degradation of insulin in pancreatic islets. This may be a physiological process, which, in correspondence with biosynthesis and secretion of insulin, would optimize the secretory granule content of the pancreatic β-cell. LÄS MER