Sökning: "Divergences"

Visar resultat 1 - 5 av 109 uppsatser innehållade ordet Divergences.

  1. 1. Drought resistance of Ectomycorrhizal fungi in the Suillus genus

    Master-uppsats, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Patricia Salén; [2024]
    Nyckelord :Ectomycorrhiza; drought; Suillus;

    Sammanfattning : Rising instances of drought are causing more tree seedling fatalities post-nursery outplanting. In the face of climate change, fostering resilient forestry practices is imperative for preserving the health and functionality of our forests. LÄS MER

  3. 2. Fragile Market: The impact of mutual funds on the corporate bond market

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Författare :Noah Tvelin; [2023]
    Nyckelord :Corporate Bonds; Mutual Funds; Fire Sale; Liquidity; Covid-19;

    Sammanfattning : This master's thesis investigates whether mutual funds can induce fire sales on the Swedish corporate bond market between August 2019 and August 2020 to determine whether mutual funds aggravated the COVID-19 crash, and if their solution to temporarily freeze withdrawals were a viable remedy. Moreover, the thesis addresses this question using a panel-data framework that includes mutual fund-specific variables, control variables suggested by previous literature, entity, and time-fixed effects, allowing the thesis to capture divergences between corporate bonds and months. LÄS MER

  4. 3. Asymptotic Symmetries and Dressed States in QED and QCD

    Master-uppsats, Stockholms universitet/Fysikum

    Författare :Saimeng Zhou; [2023]
    Nyckelord :Dressed states; Large gauge transformation; Faddeev-Kulish formalism; Generalized coherent state operator; Wilson line; Infrared divergence; Asymptotic Hamiltonian; QED; QCD;

    Sammanfattning : Infrared divergences arising in theories with massless gauge bosons have been shown to cancel in scattering amplitudes when using dressed states constructed from the Faddeev- Kulish approach to the asymptotic states. It has been established that these states are closely related to asymptotic symmetries of the theory, that is, non-vanishing gauge trans- formations at the asymptotic boundary. LÄS MER

  5. 4. Analysing Regime-Switching and Cointegration with Hamiltonian Monte Carlo

    Master-uppsats, Uppsala universitet/Statistiska institutionen

    Författare :Jakob Brandt; [2023]
    Nyckelord :Time Series Econometrics; Regime-Switching; Cointegration; Markov Chain Monte Carlo; Hamiltonian Monte Carlo;

    Sammanfattning : The statistical analysis of cointegration is crucial for inferring shared stochastic trends between variables and is an important area of Econometrics for analyzing long-term equilibriums in the economy. Bayesian inference of cointegration involves the identification of cointegrating vectors that are determined up to arbitrary linear combinations, for which the Gibbs sampler is often used to simulate draws from the posterior distribution. LÄS MER

  7. 5. Mellan ideal och vetenskap: bild-textdissonanser i framställningar av djur i Svenska Familj-Journalen 1877–1882

    Master-uppsats, Uppsala universitet/Konstvetenskapliga institutionen

    Författare :Sara Andrén; [2023]
    Nyckelord :Animals; animal welfare movement; Darwin; illustrated newspapers; illustrations; image-text divergences; imagetext; nature conservation movement; nature-culture; scientific discourses; zoology; 19th century; Djur; djurskyddsrörelsen; Darwin; illustrerade tidskrifter; illustrationer; bild-textdissonanser; imagetext; naturskyddsrörelsen; natur-kultur; vetenskapliga diskurser; zoologi; 1800-tal;

    Sammanfattning : This thesis examines the Swedish 19th century family magazine, Svenska Familj-Journalen, and the interaction between bourgeois attitudes, science, and depictions of animals. My main purpose is to demonstrate how image-text divergences can discover ruptures between 19th century bourgeoise ideology and science. LÄS MER