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Visar resultat 1 - 5 av 76 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Multidrug-Resistant Escherichia coli and Klebsiella pneumoniae : Treatment, Selection and International Spread

    Författare :Thomas Tängdén; Otto Cars; Anders Johansson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Escherichia coli; Klebsiella pneumoniae; extended-spectrum beta-lactamases; carbapenemases; metallo-beta-lactamases; synergy; antibiotic interventions;

    Sammanfattning : The prevalence of Escherichia coli and Klebsiella pneumoniae producing extended-spectrum beta-lactamases (ESBLs) and carbapenemases is increasing worldwide. Therapeutic options for infections with these bacteria are limited not only by the production of ESBLs and carbapenemases, which confer resistance to cephalosporins and carbapenems, but also by frequent co-resistance to other antibiotics. LÄS MER

  3. 2. A Probabilistic Model for Positional Voting - Spectrum Games -

    Författare :Thommy Perlinger; Statistiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; operations research; Statistics; Markov-Pólya index; initiator; Voting power index; Spectrum game; connected coalitions; programming; actuarial mathematics; Statistik; operationsanalys; programmering; aktuariematematik;

    Sammanfattning : This thesis considers a class of cooperative n-person games (voting games) in which the voters are spread across an ideological scale. The two most commonly used measures of individual voting power in voting games are the Shapley-Shubik index and the Banzhaf-Coleman index. In both indices, the actors are assumed anomymous and treatad symmetrically. LÄS MER

  4. 3. Spectrum Sensing for Dynamic Spectrum Access in Cognitive Radio

    Författare :Inna Valieva; Dag Stranneby; Mälardalens universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Abstract. The number of mobile devices is constantly growing, and the exclusivestatic spectrum allocation approach is leading to the spectrum scarcity problem whensome of the licensed bands are heavily occupied and others are nearly unused.Spectrum sharing and opportunistic spectrum access allow achieving more efficientspectrum utilization. LÄS MER

  5. 4. Spread-spectrum communications in the interference-limited HF band

    Författare :Gunnar Bark; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 5. Generalized Frequency Hopping in Cellular Radio Systems

    Författare :Mikael Gudmundson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cellular radio systems; mobile radio systems; random channel assignment; OFDM; spread spectrum; frequency hopping; spectral efficiency; Information technology; Informationsteknik; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Sammanfattning : .... LÄS MER