Sökning: "Leif Jönsson"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden Leif Jönsson.

  1. 1. Measurements of Delbrück scattering and investigation of particle production at large from colliding protons

    Författare :Leif Jönsson; Partikel- och kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:1974:Jönsson;

    Sammanfattning : [abstract missing].... LÄS MER

  3. 2. Arbetslöshet ekonomi och skam : Om att vara arbetslös i dagens Sverige

    Författare :Leif Roland Jönsson; Socialhögskolan; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; shame-experience; shame of dependency; unemployment; economic strain; shame of poverty; ill-health; Sociology of labour; sociology of enterprise; Arbetslivssociologi; företagssociologi;

    Sammanfattning : The purpose of this study has been to investigate the social consequences of unemployment and to give a possible interpretation of unemployment experiences through the application of the economy-shame model. It intends to put forward and show the significance of economic stress in combination with the feeling of shame as a factor important for the understanding of differences in unemploy-ment experiences. LÄS MER

  4. 3. Ethanol from lignocellulose : Management of by-products of hydrolysis

    Författare :Björn Alriksson; J Leif Jönsson; Vincent Eijsink; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ethanol; Lignocellulose; Detoxification; Genetic engineering; Enzyme production; Biochemistry; Biokemi; Kemi; Chemistry;

    Sammanfattning : Fuel ethanol can be produced from lignocellulosic materials, such as residues from agriculture and forestry. The polysaccharides of lignocellulose are converted to sugars by hydrolysis and the sugars can then be fermented to ethanol using microorganisms. However, during hydrolysis a wide range of by-products are also generated. LÄS MER

  5. 4. In vitro and in vivo oxidation of diastereomers of lignin models of arylgylcerol b-aryl ether type and heterologous expression of laccase

    Författare :Christina Bohlin; Leif Jönsson; Ming Tien; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Biokemi; Kemi; Chemistry;

    Sammanfattning : Enzymic and non-enzymic oxidation of lignin models of the arylglycerol β-aryl ether type was investigated in experiments aimed at providing a better understanding of the initial phase of biological lignin degradation. Product profiles and diasteromer selectivity were determined to gain knowledge of the properties of the oxidants and pave the way for evaluation of the presence of the oxidants in ligninolytic fungal cultures. LÄS MER

  7. 5. Biorefining of lignocellulose : Detoxification of inhibitory hydrolysates and potential utilization of residual streams for production of enzymes

    Författare :Adnan Cavka; Leif J. Jönsson; John N. Saddler; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Lignocellulosic biomass is a renewable resource that can be utilized for the production of biofuels, chemicals, and bio-based materials. Biochemical conversion of lignocellulose to advanced biofuels, such as cellulosic ethanol, is generally performed through microbial fermentation of sugars generated by thermochemical pretreatment of the biomass followed by an enzymatic hydrolysis of the cellulose. LÄS MER