Sökning: "pH buffering"
Visar resultat 16 - 20 av 36 avhandlingar innehållade orden pH buffering.
16. Photosynthetic water oxidation : the function of two extrinsic proteins
Sammanfattning : The solar energy accumulated by photosynthesis over billions of years is the sole source of energy available on Earth. Photosystem II (PSII) uses the sunlight to split water, an energetically unfavorable reaction where electrons and protons are extracted from water and oxygen is released as a by-product. LÄS MER
17. Phosphorus application strategies in potato : constraints and potential improvements
Sammanfattning : Phosphorus (P) is an essential element that plays an important role in carbohydrate metabolism and energy transfer systems in all plants. Sufficient P supply is therefore essential for providing adequate food, fibre and fuel for society. In potato, P deficiency reduces yield and tuber number due to reduced radiation interception by the canopy. LÄS MER
18. Major leaching processes of combustion residues : characterisation, modelling and experimental investigation
Sammanfattning : Characterising leaching behaviour provides ample evidence toidentify the majorleaching processes of combustion residues.Neutralisation and chemical weatheringgovern the leachingreactions and control the release of major, minor and traceelementsfrom combustion residues, and are thus considered to bethe major leaching processes. LÄS MER
19. Weathering of mining waste rock containing alum shale and limestone
Sammanfattning : Geochemical processes occurring in the waste rock dumps ofan old phosphate mine, located in Maardu, northem Estonia, havebeen studied and modelled. The waste rock contains pyritic,metalliferous and organic-rich shale, as well as limestone.Production of acidity during pyrite oxidation is a potentialmechanism for heavy metal release. LÄS MER
20. Mitochondrial permeability transition following calcium overload. - Its role in neuronal cell death and potential as a pharmacological target
Sammanfattning : There is currently no clinically available drug with neuroprotective properties to limit the evolving cell death following e.g. stroke or traumatic brain injury. The mitochondrial permeability transition (mPT) is a potential pathological mechanism causing cell death in the CNS. LÄS MER