Sökning: "proxy response"

Visar resultat 1 - 5 av 41 uppsatser innehållade orden proxy response.

  1. 1. The impact of CO2 fertilisation on foliage in West and East Africa

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Gaetane Demyttenaere; [2023]
    Nyckelord :Physical geography and ecosystem analysis; CO2 fertilisation; semi-arid ecosystems; remote sensing; Normalised Difference Vegetation Index; Earth and Environmental Sciences;

    Sammanfattning : Anthropogenic impact on terrestrial ecosystems continues to grow as we further enhance atmospheric Carbon Dioxide (CO₂) concentrations. The changing climatic conditions and direct influence of CO₂ on vegetation has a big impact on ecosystem functions. LÄS MER

  3. 2. An Empirical Investigation of The Effect of Proxy Response and The Merits of Its Remedial Measures

    Magister-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Charles Edward Okon; Randi Kalanika Assalaarachchi; [2023]
    Nyckelord :missing data; proxy response; missingness mechanism; error-in-variable; logistic regression; Monte-Carlo simulation; missing at random; complete case analysis; proxy substitution; multiple imputation; inverse probability treatment weighting;

    Sammanfattning : In the event of missing data, substitution of data from proxy sources are usually considered a very useful alternative when available to avoid the problem of missingness. Nonetheless, research has also shown that this approach often induces “response bias”. LÄS MER

  4. 3. From Boom to Bust: Unfolding the association between business cycles and the mental health of Swedish children

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Maja Juväng; Thilda Horvath; [2023]
    Nyckelord :Child mental health; Health economics; Business Cycles; Unemployment rate; Fixed effects model; Business and Economics;

    Sammanfattning : An extensive body of literature links macroeconomic conditions to mortality and diverse health outcomes in adulthood, but largely ignores the impact on children. Sweden is currently at the verge of an economic downturn, while mental health disorders and psychosomatic problems are the most common health issue amongst children. LÄS MER

  5. 4. The Impact of Stock Market Manipulation: An empirical study of Nasdaq Stockholm Stock Exchange during 2018-2023

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

    Författare :Alina Mannonen; Caroline Zheng; [2023]
    Nyckelord :Stock Manipulation; Market Efficiency; Market Quality; Stockholm stock exchange; Market microstructure;

    Sammanfattning : Despite widespread concern about market manipulation, there is a general lack of empirical evidence in the literature to support this claim. In particular, market manipulation has not been thoroughly investigated in advanced stock markets. LÄS MER

  7. 5. Rörelseaktivitet hos regnbågar (Oncorhynchus mykiss) med olika antal eumelaninfläckar, utsatta för stressande sportfiske

    Kandidat-uppsats,

    Författare :Enar Gesslin; [2023]
    Nyckelord :Fish behaviour; Appearance; Heritability; Genetic correlation; Animal personalities; Behaviour; Corticosteroids; Melanin; Pigment; Syndromes; Stress response; Salmonid fish; Angling vulnerability; Fiskars beteende; Utseende; Ärftlighet; Genetisk korrelation; Djurs personlighet; Beteende; Kortikosteroider; Melanin; Pigment; Syndrom; Stressrespons; Laxfiskar; Sportfiske; Oncorhynchus mykiss;

    Sammanfattning : Rainbow trout (Oncorhynchus mykiss) are introduced in large parts of the world and are commonly farmed for consumption as well as a valued sport fish. Many species of salmonids show large intraspecific variation in pigmentation, which has been shown to correlate with stress response and several other behavioral traits. LÄS MER