Sökning: "Matched sample"

Visar resultat 16 - 20 av 77 uppsatser innehållade orden Matched sample.

  1. 16. Extraction efficiency of four pesticides using the QuEChERS extraction method and analysis by HPLC/DAD

    Kandidat-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Honia Rasul; [2022]
    Nyckelord :analytical chemistry; pesticides; QuEChERS; soil; Chemistry;

    Sammanfattning : A cleanup step is essential from an analytical perspective, to improve the chance of quantification and to minimize interference. Pesticides in soil are a necessity is agriculture for survival of crops and protection from unwanted growth and pests. LÄS MER

  3. 17. Private Firms with Public Debt: Empirical Findings of First Time Bond Issuers

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

    Författare :Hannes Månsson Höglund; Elizabeth Zhmud; [2022]
    Nyckelord :Initial public debt offerings; information asymmetry; cost of debt; going public;

    Sammanfattning : This paper studies inaugural bond issues made by private firms in relation to public equity firms on Western European bond markets. By combining data on security issues and company financial statements, we examine firm and bond characteristics of the respective type of firm. LÄS MER

  4. 18. PET-Exchange: A Privacy Enhanced Trading Framework : A Framework for Limit-Order Matching using Homomorphic Encryption in Trading

    Master-uppsats, Linköpings universitet/Institutionen för datavetenskap

    Författare :Jacob Wahlman; [2022]
    Nyckelord :Homomorphic Encryption; Privacy; Securities Exchange; Privacy Enhancing Technologies;

    Sammanfattning : Over the recent decades, an increasing amount of new traders has entered the securities markets in order to trade securities such as stocks and bonds on electronic and physical exchanges. This increase in trader activity can largely be attributed to a simpler trading process including the growth of the electronic securities exchanges allowing for more dynamic and global trading platforms. LÄS MER

  5. 19. Private Equity-Owned Companies and COVID-19: A Study of Financial Decisions and Operational Performance

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för redovisning och finansiering

    Författare :Filippa Holmlund; Julia Ingwall Bernander; [2022]
    Nyckelord :Private Equity; COVID-19; Operational Performance; Financial Decisions; Working Capital Management;

    Sammanfattning : This study aims to investigate the differences in financial decisions and operational performance of PE-backed companies relative to non-PE-backed companies during COVID-19. Our main analysis is conducted with a difference-in-differences model using a sample of 181 PE-owned companies and 850 matched companies headquartered in the United Kingdom. LÄS MER

  7. 20. Combining output from MS-based proteomics search engines using spectrum predictors

    Master-uppsats, KTH/Proteinvetenskap

    Författare :William Hadd; [2022]
    Nyckelord :Mass spectrometry; Proteomics; machine learning; search engines; Masspektrometri; Proteomik; Maskininlärning; Transformers; Sökmotorer;

    Sammanfattning : Masspektrometri (MS) är en analysmetod som indikerar provers kemiska sammansättning. Provernas innehåll fragmenteras och joniseras, varefter jonernas förhållande mellan massa och laddning (m/z) och sammanlagda intensiteter mäts i form av ett masspektrum. LÄS MER