Sökning: "resistance selection"
Visar resultat 1 - 5 av 234 avhandlingar innehållade orden resistance selection.
1. Antibiotic Resistance : Selection in the Presence of Metals and Antimicrobials
Sammanfattning : The external environment is complex: Antibiotics, metals and antimicrobials do not exist in isolation but in mixtures. Human activities such as animal husbandry, fertilization of agricultural fields and human medicine release high amounts these compounds into the environment. LÄS MER
2. Antibiotic resistance gone wild : A One Health perspective on carriage, selection and transmission of Extended-Spectrum Cephalosporinase- and Carbapenemase-producing Enterobacteriaceae
Sammanfattning : Antibiotics have saved millions of lives since they came into clinical use during the Second World War in the 1940s. Today, our effective use of antibiotics is under great threat due to emerging antibiotic resistance in bacteria. This thesis addresses the problems of antibiotic resistance from a ”One Health” perspective. LÄS MER
3. Male and female selective mechanisms, reproductive success and gene flow
Sammanfattning : In this thesis, I have studied male and female selective mechanisms that can affect plant reproductive success and gene flow. I have focussed on sexually selected traits, mainly pollen competition and maternal sorting mechanisms, for example through non-random ovule abortion. LÄS MER
4. Selection of Resistance at very low Antibiotic Concentrations
Sammanfattning : The extensive medical and agricultural use and misuse of antibiotics during the last 70 years has caused an enrichment of resistant pathogenic bacteria that now severely threatens our capacity to efficiently treat bacterial infections. While is has been known for a long time that high concentrations of antibiotics can select for resistant mutants, less is known about the lower limit at which antibiotics can be selective and enrich for resistant bacteria. LÄS MER
5. Employee selection : Mechanisms behind practitioners’ preference for hiring practices
Sammanfattning : Despite the great advances science has made in developing selection decision aids practitioners’ generally remain reluctant to adopt them. This phenomenon is considered today one of the greatest gaps in industrial, work and organizational psychology. LÄS MER