Sökning: "amber"

Visar resultat 1 - 5 av 18 avhandlingar innehållade ordet amber.

  1. 1. Foreign background and criminal offending among young males in Stockholm

    Författare :Amber Beckley; Jerzy Sarnecki; Magnus Bygren; Torbjørn Skardhamar; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; immigrants and crime; foreign background; criminology; kriminologi; Criminology;

    Sammanfattning : This doctoral thesis considers how factors from the home country, the family, and the individual impact the risk for criminal offending among young males from a foreign background residing in Stockholm. I use Swedish register data to examine the risk for police registered suspicion of criminal offending. LÄS MER

  3. 2. Multiscale Modeling of Molecular Sieving in LTA-type Zeolites : From the Quantum Level to the Macroscopic

    Författare :Amber Mace; Laaksonen Aatto; Tina Düren; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CO2 separation; carbon capture; kinetic sieving; Zeolite A; Zeolite NaKA; cation exchange; temporal coarse graining; Kinetic Monte Carlo; Molecular Dynamics; AIMD; DFT; fysikalisk kemi; Physical Chemistry;

    Sammanfattning : LTA-type zeolites with narrow window apertures coinciding with the approximate size of small gaseous molecules such as CO2 and N2 are interesting candidates for adsorbents with swing adsorption technologies due to their molecular sieving capabilities and otherwise attractive properties. These sieving capabilities are dependent on the energy barriers of diffusion between the zeolite pores, which can be fine-tuned by altering the framework composition. LÄS MER

  4. 3. Greenhouse Gas Dynamics in Ice-covered Lakes Across Spatial and Temporal Scales

    Författare :Blaize Amber Denfeld; Gesa Weyhenmeyer; Kimberly Wickland; Uppsala universitet; []
    Nyckelord :carbon cycle; climate change; cryosphere; carbon dioxide; methane; lakes; winter limnology; methane oxidation; nutrients; catchment; Limnologi; Limnology;

    Sammanfattning : Lakes play a major role in the global carbon (C) cycle, despite making up a small area of earth’s surface. Lakes receive, transport and process sizable amounts of C, emitting a substantial amount of the greenhouse gases, carbon dioxide (CO2) and methane (CH4), into the atmosphere. LÄS MER

  5. 4. In Vitro Kinetics of Ribosomal Incorporation of Unnatural Amino Acids

    Författare :Jinfan Wang; Anthony Forster; Jason Chin; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ribosome; protein synthesis; unnatural amino acids; kinetics; Biology with specialization in Molecular Biology; Biologi med inriktning mot molekylärbiologi;

    Sammanfattning : Ribosomal incorporation of unnatural amino acids (AAs) into peptides or proteins has found broad applications in studying translation mechanism, discovering potential therapeutics, and probing protein structure and function. However, such applications are generally limited by the low incorporation efficiencies of the unnatural AAs. LÄS MER

  7. 5. Diffusion in Poly(vinyl alcohol) and Polyethylene as Determined by Computational Simulations and Modeling

    Författare :Gunnar Karlsson; KTH; []
    Nyckelord :Molecular dynamics; simulation; modeling; polymer; poly vinyl alcohol ; polyethylene; water; oxygen; limonene; solute; diffusion; transport properties;

    Sammanfattning : Poly(vinyl alcohol) and polyethylene polymer systems werebuilt in order to study their transport properties (diffusion).First a verification of the AMBER force field was conducted fora poly(vinyl alcohol) system built from a chain with 145repeating units. NPT-molecular dynamics simulations attemperatures between 400 and 527 K were performed. LÄS MER