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Showing result 1 - 5 of 67 essays matching the above criteria.

  1. 1. Predicting Myocardial Injury After Noncardiac Surgery

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Giordano Cauli; [2023]
    Keywords : Myocardial injury; hypotension; machine learning; non-cardiac surgery; F1; Myokardiell skada; hypotension; maskininlärning; icke-kardiell kirurgi; F1;

    Abstract : Myocardial injury is the leading cause of death in Europe following non-cardiac surgery. Its causes, diagnosis, and treatment are still under investigation by the scientific community. Some research groups have hypothesized a connection between myocardial injury and hypotension during surgery. READ MORE

  3. 2. Forest fertilization does not cause any long-term effects on tree growth or vegetation composition

    University essay from SLU/Dept. of Ecology

    Author : Yixian Chen; [2023]
    Keywords : density; ground vegetation; height; stem radial growth; legacy nitrogen effect; soil total N and C N ratio; tree;

    Abstract : Forest fertilization is considered one of the most effective management options to improve forest productivity. In Fennoscandia, nitrogen (N) fertilization has been practiced for over 50 years and is normally added in the form of granules of NH4NO3 at least 15 years prior to the final harvest. READ MORE

  4. 3. Relations between tree and habitat characteristics and the epiphytic lichen flora on oak : a case study from Lövön, Bohuslän

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Julia Siegel; [2023]
    Keywords : Epiphytic lichens; Tree characteristics; Habitat characteristics; Oak; Biodiversity; Natural values; Light availability;

    Abstract : Oak-rich forests and wooded pastures harbor diverse and distinct epiphytic lichen flora with many rare and threatened species. As these habitats have been subject to a substantial decline and degradation over the past centuries, oak woodlands have progressively come into focus for preservation. READ MORE

  5. 4. Fungal Effects on Tree Growth in a Primary Succession

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : August Hedberg; Julian Säflund; [2023]
    Keywords : primary succession; succession; ectomycorrhiza; saprotroph; tree growth; Pinus sylvestris; soil fungi;

    Abstract : In the Boreal zone, ectomycorrhiza is the most common mycorrhiza found among trees and helps with nitrogen and nutrient uptake. Most research on mycorrhiza, its effect, and community development are done on secondary succession (succession in an ecosystem after a disturbance) such as after a clearcut. READ MORE

  6. 5. Exploring the factors affecting tree establishment after wildfire in a boreal forest in Sweden

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Robert Pim; [2023]
    Keywords : tree regeneration; tree establishment; wildfire; boreal forests; disturbance; sapling regeneration; generalized linear mixed models;

    Abstract : The factors affecting tree establishment in boreal forests after fire will help determine the community composition of the regenerating forest. These may have large consequences on the community dynamics for years after the fire disturbance. READ MORE