Essays about: "mineral"

Showing result 21 - 25 of 608 essays containing the word mineral.

  1. 21. Utveckling av barrträdsföryngringar markberedda med grävmarkberedning kontra harvning på blockrik skogsmark

    University essay from SLU/Department of Forest Biomaterials and Technology (from 131204)

    Author : Svante Brus; [2023]
    Keywords : markberedning; föryngring; död ved; tillväxt; ekonomi;

    Abstract : Markberedning utförs på ungefär 90 % av den föryngrade arealen i Sverige varje år och utförs vanligtvis maskinellt med avsikt att bearbeta marken för att skapa goda förutsättningar för plantetablering. En icke obetydlig del av Stora Ensos markinnehav är på blockrik mark som är tekniskt svår att markbereda. READ MORE

  3. 22. Reconstructing Past Climate by Using XRF and Loss of Ignition on Loess from Adventdalen, Svalbard : Rekonstruktion av tidigare klimat genom attanvända XRF analys och antändningsförlust på lössavlagringar från Adventdalen, Svalbard

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Albin Andreasson; Noa Lind; [2023]
    Keywords : Svalbard; loess soil; XRF; weathering; climate change;

    Abstract : By analyzing the texture, composition and chemical composition of loess soils, the reconstruction ofpast climate regimes is enabled, which can improve our understanding of current and future climatechange. Properties such as grain size and composition, mineralogy, organic matter and chemicalcomposition can provide information about which environmental factors were present during thedeposition of the sediment, which can lead to a detailed picture of the climate history of a site. READ MORE

  4. 23. The effect of calcium silicate-based cements on viability and differentiation of human stem cells from the dental apical papilla. : Future aspects in endodontic regeneration.

    University essay from Umeå universitet/Wallenberg centrum för molekylär medicin vid Umeå universitet (WCMM); Umeå universitet/Tandläkarutbildning

    Author : Lahood Abdalla; Bagir Soltani; [2023]
    Keywords : MTA; Biodentine; SCAP; Regenerativ endodonti; endodonti; traumatiserade tänder; tänder; unga tänder;

    Abstract : Introduction: Pulp necrosis in immature permanent teeth stops root development and may lead to higher risk of cervical fractures and a challenging treatment. Regenerative endodontic treatment (RET) aims to continue tooth development and implies the use of calcium silicate-based cements, such as Mineral trioxide aggregate (MTA) and Biodentine to seal the root canal. READ MORE

  5. 24. The Promise of a Green Revolution : Conceptions of climate change and sustainability in local movements objecting to mining establishment

    University essay from Uppsala universitet/Institutionen för kulturantropologi och etnologi

    Author : Caroline Reinhammar; [2023]
    Keywords : ;

    Abstract : This study explores how vernacular understandings of climate change and sustainability are formed in relation to local disputes concerning mineral exploration. In a search for a solution to climate change, the interest in rare earth elements (REEs), and other metals used in green technology has resulted in granting mining companies processing concessions in Sweden. READ MORE

  6. 25. Barium in the O horizon of soils near Sundsvall, northern Sweden : From local minerals or from anthropogenic emissions?

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Mattias Åsberg Gencturk; [2023]
    Keywords : Barium; soil; organic horizon;

    Abstract : Concentrations of potentially toxic metals in surface soils are important to investigate before building new residential areas. Prior to development of a residential area in Sundsvall, northern Sweden, it was observed that barium (Ba) concentrations in the soil at the site exceeded the guideline value of 200 mg kg-1 outlined by the Swedish Environmental Protection Agency. READ MORE