Sökning: "E Borg"

Visar resultat 16 - 20 av 30 avhandlingar innehållade orden E Borg.

1. 16. Bacteria and geochemistry in a former uranium open pit mine - mobilization of trace metals

   Författare :Frida Edberg; Sara J. M. Holmström; Hans Borg; Stephan M. Kraemer; Stockholms universitet; []
   Nyckelord :Pseudomonas fluorescens; siderophore; Ranstad; alum shale; iron; pyrosequencing; redox; size fractionation; NATURAL SCIENCES; NATURVETENSKAP; Applied Environmental Science; tillämpad miljövetenskap;

   Sammanfattning : In mining areas around the world, chemical and biotic processes have lead to the release of toxic substances, e.g. metals. Microbial processes influence metal speciation, while the chemical environment shapes and controls microbial populations. LÄS MER

3. 17. Nitrogen land-sea fluxes in the Baltic Sea catchment : Empirical relationships and budgets

   Författare :Hanna Eriksson Hägg; Christoph Humborg; Carl-Magnus Mörth; Hans Borg; Sybil Seitzinger; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nitrogen fluxes; Baltic Sea; primary emissions; riverine export; Scenario analysis; climate change; animal protein consumption; fertilizer use; Environmental chemistry; Miljökemi; Applied Environmental Science; tillämpad miljövetenskap;

   Sammanfattning : In this thesis empirical relationships and modeling tools are used to describe the relationship between human activities and meso- and large scale riverine N fluxes from land to sea. On a large scale Paper I showed that by only having knowledge about human population size and runoff one can estimate the riverine export of DIN (r2= 0.76). LÄS MER

4. 18. Electronic Properties of Metal Oxide Films Studied by Core Level Spectroscopy

   Författare :Jan Hinnerk Richter; Anders Sandell; Håkan Rensmo; Anne Borg; Uppsala universitet; []
   Nyckelord :Physics; electron spectroscopy; metal oxide; chemical vapour deposition; ion insertion; metal organic; band alignment; zirconium; titanium; silicon; high k; Fysik;

   Sammanfattning : In this dissertation core level electron spectroscopy has been employed to study various aspects of metal oxide films grown under ultra-high vacuum conditions. Studies on in situ ion insertion of lithium into thin TiO2 systems were performed. LÄS MER

5. 19. Hearing impairment and deafness : genetic and environmental factors - interactions - consequences : a clinical audiological approach

   Författare :Per-Inge Carlsson; Erik Borg; Berth Danermark; Claes Möller; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Disability studies; hereditary hearing impairment; deafness; noise induced hearing loss; Deaf community; connexin mutations; oxidative stress genes; family history of hearing impairment; audiological rehabilitation; audiological medicine; Handikappforskning; Disability research; Handikappsforskning; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Social sciences; Socialvetenskap; Medicinsk handikappvetenskap; Medical Disability Research;

   Sammanfattning : OBJECTIVES - Hearing impairment (HI) can be due to genetic or environmental factors, e.g. noise. More than 50% of HI cases are thougt to be hereditary. LÄS MER

7. 20. Environmental and health aspects of corrosion– importance of chemical speciation

   Författare :Yolanda Hedberg; Inger Odnevall Wallinder; Anna Karin Borg Karlsson; Susanna Wold; KTH; []
   Nyckelord :;

   Sammanfattning : During the last decades, the interest in corrosion of metals and alloys from an environmental and health perspective has increased rapidly as a consequence of stricter environmental and human exposure legislations, their extensive use as implant materials and an increasing understanding related to occupational and/or daily exposure to airborne particles. Corrosion-induced metal release, however, needs to be understood in detail and to include knowledge related to chemical speciation, i. LÄS MER