Sökning: "David Lund"

Visar resultat 1 - 5 av 37 avhandlingar innehållade orden David Lund.

  1. 1. Att göra vänskap : En kultursociologisk analys av högstadieelevers sociala relationer

    Författare :Lina Lundström; Anna Lund; David Cardell; David Wästerfors; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Upper secondary school students; doing friendship; peer relations; children s perspectives; childhood; inclusion exclusion; social power; popularity; cultural sociology; meaning making; social boundaries; cultural elements; video ethnography; barn- och ungdomsvetenskap; Child and Youth Studies;

    Sammanfattning : This doctoral thesis explores how secondary school students perform friendship in a Swedish school. The thesis aims to describe and explain how cultural elements, such as an audience of peers, stages for friendship performances (e.g. LÄS MER

  3. 2. Computational discovery of antibiotic resistance genes and their horizontal transfer

    Författare :David Lund; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phylogenetic analysis; Antibiotic resistance; horizontal gene transfer; computational screening;

    Sammanfattning : Antibiotic resistance is increasing among clinical infections and represents one of the most serious threats to public health. Pathogens often become resistant by acquiring mobile antibiotic resistance genes (ARGs) via horizontal gene transfer (HGT). LÄS MER

  4. 3. Physics of Aftershocks in the South Iceland Seismic Zone : Insights into the earthquake process from statistics and numerical modelling of aftershock sequences

    Författare :Mattias Lindman; Roland Roberts; Björn Lund; David Marsan; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earthquake processes; Aftershocks; Physics of aftershocks; Omori law; Postseismic processes; Pore pressure diffusion; Poroelasticity; Statistical seismology; Self-organised criticality; Interevent time distributions; Waiting time distributions; Geophysics; Geofysik;

    Sammanfattning : In seismology, an important goal is to attain a better understanding of the earthquake process. In this study of the physics of aftershock generation, I couple statistical analysis with modelling of physical processes in the postseismic period. LÄS MER

  5. 4. Charged particle distributions and robustness of the neural network pixel clustering in ATLAS

    Författare :Edvin Sidebo; Jonas Strandberg; Bengt Lund-Jensen; David Silvermyr; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; p p: scattering; ATLAS; LHC; charged particle: multiplicity; semiconductor detector: pixel; neural network: performance; track data analysis: cluster; charged particle: cluster; splitting; CERN LHC Coll; Fysik; Physics;

    Sammanfattning : This thesis contains a study of the robustness of the artificial neural network used in the ATLAS track reconstruction algorithm as a tool to recover tracks in dense environments. Different variations, motivated by potential discrepancies between data and simulation, are performed to the neural network’s input while monitoring the corresponding change in the output. LÄS MER

  7. 5. Experimental Studies of Ursolic Acid and Alkaline Sphingomyelinase in Colon Cancer and Colitis

    Författare :David Andersson; Lund Medicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Sphingomyelin (SM) is a sphingolipid present in all eukaryotic cell membranes. Hydrolysis of SM by sphingomyelinase (SMase) generates ceramide, which has effects on cell-cycle regulation and apoptosis. LÄS MER