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Showing result 1 - 5 of 42 essays matching the above criteria.

  1. 1. 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

  3. 2. Effects of vegetation and nutrients on methanotroph abundance and methane emissions from constructed wetlands

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Klara Yngve; [2022]
    Keywords : Diffusive flux; Ebullition; Dissolved CH4; CH4 oxidation; Phosphorous;

    Abstract : Agriculture is the largest anthropogenic source of nitrogen and phosphorous (P) leakage to Swedish coastal seas, causing eutrophication which threatens marine ecosystems. Constructing wetlands is one way to improve nutrient retention in the modern agricultural landscape. However, constructed wetlands can emit substantial amounts of methane (CH4). READ MORE

  4. 3. Optimization of a two-step anaerobic treatment of wastewater from the Pulp and Paper Industry

    University essay from KTH/Industriell bioteknologi

    Author : Sara Bard; [2022]
    Keywords : Wastewater treatment; biogas; methane; pulp and paper mill wastewater; wood raw material; anaerobic treatment; sulphate reduction; UAPB reactor; Vattenrening; biogas; metan; processvatten från pappers- och massaindustrin; träråvara; anaerob rening; sulfatreduktion; UAPB reaktor;

    Abstract : Under de senaste 30 åren så har antalet massa- och pappersbruk minskat medan den totala produktionen av massa och papper har ökat. En högre produktion per bruk tillsammans med en hårdare miljölagstiftning, sätter ett högre tryck på vattenreningen på varje bruk. READ MORE

  5. 4. Fallstudie av kompostbäddar till mjölkkor i Sverige : hur skötseln och ventilationen påverkar juverhälsan

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Sara Gustavsson; Elin Isaksson; [2022]
    Keywords : vattenavgivning; E. coli; Klebsiella; mastit; pH; temperatur; kokomfort;

    Abstract : Kompostbäddar är ett inhysningssystem där en stor yta med ströbädd kultiveras två gånger per dag. Genom att tillföra syre ner i bädden startar en värmeavgivande, aerob komposteringsprocess där organiskt material bryts ner av mikroorganismer. Bädden strös vanligtvis med spån, vilket blandas med avföring och urin från korna. READ MORE

  6. 5. Microbial Carbonisation and its potential for on-farm composting : exploring reductive composting as an approach for regenerative agriculture

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Ludwig Peter Stephan; [2022]
    Keywords : on-farm composting; reductive composting; regenerative agriculture; microbial carbonisation; mikrobielle carbonisierung; greenhouse gas emissions;

    Abstract : The search for agronomic solutions to the decline of soil health, open-ended nutrient cycles and greenhouse gas (GHG) emissions from agriculture, against the background of impending climate change, were motivations for this thesis. A composting trial on a Swedish farm was designed to find answers to the overarching research question of how feasible and climate-friendly on-farm composting using Microbial Carbonisation (MC) is, compared to conventional windrow composting (CC). READ MORE