Sökning: "Stefan Jansson"
Visar resultat 16 - 20 av 24 avhandlingar innehållade orden Stefan Jansson.
16. What's in your mind? : Collegial Verbalisation – An ecological approach to knowledge elicitation
Sammanfattning : Knowledge elicitation of the work of professional operators, using traditional methods such as concurrent or retrospective verbalization is problematic. Concurrent verbalization distracts the operators from their primary task, and the operators have difficulties in verbalizing about their automated work tasks. LÄS MER
17. Light, stress and herbivory : from photoprotection to trophic interactions using Arabidopsis thaliana as a model organism
Sammanfattning : Photosynthesis is the most important process for nearly all life on earth. Photosynthetic organisms capture and transfer light energy from the sun into chemical energy which in turn provides a resource base for heterotrophic organisms. Natural light regimes are irregular and vary over magnitudes. LÄS MER
18. Stress responses of Arabidopsis plants with a varying level of non-photochemical quenching
Sammanfattning : When light energy input exceeds the capacity for photosynthesis the plant need to dissipate the excess energy and this is done through non-photo-chemical quenching (NPQ). Photochemical quenching (photosynthesis), NPQ and fluorescence are three alternative faiths of excited chlorophylls. PsbS associates to photosystem II and is involved in NPQ. LÄS MER
19. Constructing a timetable of autumn senescence in aspen
Sammanfattning : During the development and lifecycle of multicellular organisms, cells have to die, and this occurs by a process called programmed cell death or PCD, which can be separated from necrosis or accidental cell death (Pennell and Lamb, 1997). Senescence is the terminal phase in the development of an organism, organ, tissue or cell, where nutrients are remobilized from the senescing parts of the plant into other parts, and the cells of the senescing organ or tissue undergo PCD if the process is not reversed in time. LÄS MER
20. The labyrinth of protein classification: a pipeline forselection and classification of biological data
Sammanfattning : Recent progress in fundamental biological sciences and medicine has considerably increased the quantity ofdata that can be studied and processed. The main limitation now is not retrieving data, but rather extractinguseful biological insights from the large datasets accumulated. LÄS MER
