Sökning: "Threshold Excess Model"

Visar resultat 6 - 10 av 10 avhandlingar innehållade orden Threshold Excess Model.

  1. 6. On the Winds of Carbon Stars and the Origin of Carbon : A Theoretical Study

    Författare :Lars Mattsson; Susanne Höfner; Nils Bergvall; Kjell Olofsson; Martin Groenewegen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; AGB stars; carbon stars; mass loss; stellar winds; circumstellar matter; cosmic dust; stellar evolution; nucleosynthesis; galactic chemical evolution; Astronomy and astrophysics; Astronomi och astrofysik; Astronomy; Astronomi; Fysik; Physics;

    Sammanfattning : Carbon is the basis for life, as we know it, but its origin is still largely unclear. Carbon-rich Asymptotic Giant Branch (AGB) stars (carbon stars) play an important rôle in the cosmic matter cycle and may contribute most of the carbon in the Galaxy. LÄS MER

  2. 7. Search for low mass WIMPs with the AMANDA neutrino telescope

    Författare :Anna Davour; Olga Botner; Carlos de los Heros; Mark Pearce; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; dark matter; WIMP; neutrino detection; AMANDA; supersymmetry; Fysik; Physics; Fysik; High Energy Physics; Högenergifysik;

    Sammanfattning : Recent measurements show that dark matter makes up at least one fifth of the total energy density of the Universe. The nature of the dark matter is one of the biggest mysteries in current particle physics and cosmology. LÄS MER

  3. 8. Roles of LESIONS SIMULATING DISEASE1 and Salicylic Acid in Acclimation of Plants to Environmental Cues : Redox Homeostasis and physiological processes underlying plants responses to biotic and abiotic challenges

    Författare :Alfonso Mateo; Stanislaw Karpinski; Philip M. Mullineaux; John F. Allen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LSD1; Photooxidative stress; Reactive oxygen species; Light acclimation; Photorespiration; Salicylic acid; Plant physiology; Växtfysiologi;

    Sammanfattning : In the natural environment plants are confronted to a multitude of biotic and abiotic stress factors that must be perceived, transduced, integrated and signaled in order to achieve a successful acclimation that will secure survival and reproduction. Plants have to deal with excess excitation energy (EEE) when the amount of absorbed light energy is exceeding that needed for photosynthetic CO2 assimilation. LÄS MER

  4. 9. Observations of nearby Galaxy Clusters with the Fermi Large Area Telescope : Towards the first Gamma Rays from Clusters

    Författare :Stephan Zimmer; Jan Conrad; Lars Bergström; Torsten Enßlin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Galaxy Clusters; Fermi-LAT; γ rays; Dark Matter; Cosmic Rays; fysik; Physics;

    Sammanfattning : Galaxy clusters are the most massive bound systems known in the Universe and are believed to have formed through large scale structure formation. They host relativistic cosmic-ray (CR) populations and are gravitationally bound by large amounts of Dark Matter (DM), both providing conditions in which high-energy gamma rays may be produced either via CR interactions with the intracluster medium or through the annihilation or decay of DM particles. LÄS MER

  5. 10. Bioelectronic Devices for Targeted Drug Delivery and Monitoring of Microbial Electrogenesis

    Författare :Arghyamalya Roy; Daniel T Simon; Klas Tybrandt; Christopher Proctor; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Electrophoresis; Extracellular Electron Transfer EET ; Ion Exchange Membranes IEM ; Drug Delivery; Bupivacaine; Chronic Neuropathic Pain; Microfabrication; Inkjet Printing; Organic Electrochemical Transistor OECT ; Fumarate; Shewanella oneidensis; Dorsal Root Ganglia DRG ; Organic Electronic Ion Pump OEIP ;

    Sammanfattning : Despite a range of pain therapies available in the market, 70% of patients report so-called “breakthrough pain”. Coupled with global issues like opioid crisis, there is a clear need for advanced therapies and technologies for pain management. LÄS MER