Sökning: "BR"

Visar resultat 1 - 5 av 191 uppsatser innehållade ordet BR.

  1. 1. Public certificate management revisited : A summary of policy changes over a two-year period (2021-2023)

    Kandidat-uppsats, Linköpings universitet/Institutionen för datavetenskap

    Författare :Simon Bergström; Lowe Kozak; [2023]
    Nyckelord :Certificate Authority; Baseline Requirements; CA; BR;

    Sammanfattning : The purpose of this study was to investigate how the Digital Certificate managementactors of the Public Key Infrastructure of the Internet have changed over the past two years(2021-2023). A set of one million registered top domains were queried with the intention ofmapping out their certificates. LÄS MER

  3. 2. Synthesis and Characterization of NCN Pincer Nickel Complexes

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Joel Klarén; [2023]
    Nyckelord :Pincer complexes; Nickel; organometallic chemistry; synthesis; NCN Pincer Nickel Complexes; organic chemistry; Chemistry;

    Sammanfattning : In this work, a series of nickel NCN complexes and ligands have been synthesized with the goal of determining whether they can perform so-called CO2-insertion reactions into Ni-C bonds. So far, only the synthesis of the Ni-Br precursor complexes to the previously mentioned Ni-C complexes have been synthesized. LÄS MER

  4. 3. Indexanvändning i ramavtal : En strategi för att hantera en volatil marknad

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Sandra Herrgård; Clara Johansson; [2023]
    Nyckelord :inköp; ramavtal; indexreglering; volatil marknad; fasta priser; hedgeportfölj; Monte Carlo-simulering; riskreduktion;

    Sammanfattning : De senaste årens globala utveckling med pandemi, kriser och krig har satt Skanskas inköpsarbete på prov. Denna omvälvande situation har skapat en volatil marknad med en snabb prisutveckling, vilket har utmanat de befintliga prisklausulerna i Skanskas ramavtal som inte har kunnat hantera den verkliga kostnadsutvecklingen. LÄS MER

  5. 4. Hur mycket organohalogener får vi egentligen i oss? En studie av total koncentration organohalogener i lax, sill och torsk : How much organohalogens do we really ingest? A study of total concentrations of organohalogens in salmon, herring, and cod

    Kandidat-uppsats, Linköpings universitet/Institutionen för tema

    Författare :Emma Hidbäck; Sofie Jansson; [2023]
    Nyckelord :organohalogens; organohalogener;

    Sammanfattning : Studies have shown high concentrations of organohalogens in lipid-rich foods, such as fish, which is believed to be the main source of human exposure to persistent organic pollutants (POPs) via food consumption. There are methods for measuring total organohalogens in, for example, water, but no standardized methods for food. LÄS MER

  7. 5. Synthesis and analysis of potential metabolites of ADB-5´Br-BUTINACA

    Kandidat-uppsats, Linköpings universitet/Kemi

    Författare :Alaa Malekshahineia; [2023]
    Nyckelord :metabolites; NPS; synthetic cannabinoids;

    Sammanfattning : In recent years, there has been a rise in the use of New Psychoactive Substances (NPS) that mimic the effects of controlled drugs and licensed medicines, which have become a significant public health concern globally. Synthetic cannabinoids, a rapidly expanding category of NPS, with much higher potency and binding affinity to the cannabinoid receptors than ∆9-tetrahydrocannabinol (THC), have led to serious psychiatric complications and other adverse effects. LÄS MER