Search for dissertations about: "nutrient transport"

Showing result 1 - 5 of 66 swedish dissertations containing the words nutrient transport.

  1. 1. Long-term development, modeling and management of nutrient loading to inland and coastal waters

    University dissertation from Stockholm : Institutionen för naturgeografi och kvartärgeologi

    Author : Amélie Darracq; Stockholms universitet.; Stockholms universitet.; [2007]
    Keywords : Physical Geography; geografi med naturgeografisk inriktning; Nutrients; catchments; environmental management; climate change; population and lifestyle development; subsurface-surface water interactions; long-term simulations; nutrient retention; modeling; hydrology; transport processes; biogeochemistry; scaling; transport and reaction rates; nutrients; climate chage;

    Abstract : Environmental and water system protection and restoration require accurate knowledge and quantification of waterborne pollutant transport, retention-release and transformation processes taking place in the subsurface, river, lake and sea water systems, and at the interfaces between these systems. This thesis investigates the importance of spatial model resolution for such quantification and the possible long-term nutrient load development under different human perturbations and nutrient source management scenarios in the Swedish Norrström drainage basin, based on simulations with the GIS-based dynamic nutrient transport-attenuation model POLFLOW. READ MORE

  2. 2. Cytokines and lipids in pregnancy – effects on developmental programming and placental nutrient transfer

    University dissertation from Stockholm : Institutionen för naturgeografi och kvartärgeologi

    Author : Susanne Lager; Göteborgs universitet.; Gothenburg University.; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; adipose tissue; amino acids; cytokines; developmental programming; free fatty acids; insulin resistance; interleukin-6; lipoprotein lipase; nutrient transport; placenta; toll-like receptor 4;

    Abstract : Metabolic disturbances, in particular those associated with nutritional challenges, that take place during development, both in utero and early postnatal life, have long-lasting health consequences on an individual. The most pronounced evidence of these challenges is a deviation in birth weight. READ MORE

  3. 3. Membrane-remodeling by SNX18 in endosomal transport and autophagy

    University dissertation from Department of Medical Biochemistry and Biophysics, Umeå University

    Author : Karin Håberg; Umeå universitet.; [2012]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Sorting nexin; SNX9-family; SNX18; endosomal transport; autophagy; medicinsk biokemi; Medical Biochemistry;

    Abstract : The intracellular space of eukaryotic cells is subdivided into functionally distinct membrane-enclosed organelles. Regulation of these intracellular membranes requires an intricate network of specialized lipids and proteins that maintain organellar integrity and mediate transport between organelles. READ MORE

  4. 4. Waterborne sediment and pollutant transport into lakes and accumulation in lake sediments

    University dissertation from Stockholm : Institutionen för naturgeografi och kvartärgeologi

    Author : Gull Olli; Stockholms universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Catchment; environmental projects; erosion; eutrophication; phosphorous transport and retention; soil transport; sediment accumulation; NATURAL SCIENCES Earth sciences Exogenous earth sciences Physical geography; NATURVETENSKAP Geovetenskap Exogen geovetenskap Naturgeografi; Physical Geography; naturgeografi;

    Abstract : The general objective of this thesis is to contribute to the knowledge of the transport of sediments and pollutants from catchments to downstream water recipient systems and their accumulation in these systems, such as lakes and lake sediments. One part of the thesis studies the importance of drainage reach morphology and water flow for the phosphorous (P) transport and retention in the reaches, and the main controlling processes of the P retention in the reach sediments. READ MORE

  5. 5. Conceptual Runoff Models for Material Transport Estimations

    University dissertation from Water Resources Engineering, Lund University

    Author : Rikard Lidén; Lunds universitet.; Lund University.; [2000]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; teknisk geologi; Hydrogeologi; geographical and geological engineering; Hydrogeology; Conceptual Rainfall-Runoff Modelling; Riverine Material Transport; teknisk geografi; Geophysics; physical oceanography; meteorology; Geofysik; fysisk oceanografi; meteorologi;

    Abstract : Catchment-scale material transport models are today important tools for water and environmental management. However, modelling of material transport is extremely complex due to the physical, chemical and biological processes involved. READ MORE