Sökning: "lichen"
Visar resultat 1 - 5 av 69 avhandlingar innehållade ordet lichen.
1. In search of the missing bias : Virtual reality based attentional bias modification for social anxiety
Sammanfattning : Attentional bias modification (ABM) aims to attenuate social anxiety by directly modifying the underlying bias that generates and maintains problematic anxiety. Mixed results from previous ABM studies have spurred efforts to boost its effectiveness by introducing more robust bias modification protocols and new technologies. LÄS MER
2. The puzzle of lichen symbiosis : Pieces from Thamnolia
Sammanfattning : Symbiosis brought important evolutionary novelties to life on Earth. Lichens, the symbiotic entities formed by fungi, photosynthetic organisms and bacteria, represent an example of a successful adaptation in surviving hostile environments. Yet many aspects of the lichen symbiosis remain unexplored. LÄS MER
3. Oral lichen planus : studies of factors involved in differentiation, epithelial mesenchymal transition and inflammation
Sammanfattning : Background: Lichen planus is a chronic inflammation of skin and mucosa with unknown cause. Oral Lichen Planus, OLP, affects around 2% of the population. Autoimmunity has been suggested as a possible cause as the disease has autoimmune features such as female predominance, cyclic nature and cytotoxic T-cell infiltrate. LÄS MER
4. Nitrogen fixation in the lichen Stereocaulon paschale
Sammanfattning : The thesis is a summary and discussion of six papers.The purpose of the investigation was to study the influence of (i) environmental factors and (ii) the physiological condition of the thallus on nitrogen fixation in the lichen Stereocaulon paschale (L.) Fr. LÄS MER
5. Modeling lichen performance in relation to climate : scaling from thalli to landscapes
Sammanfattning : Lichens can colonize nearly all terrestrial habitats on earth and are functionally important in many ecosystems. Being poikilohydric, their active growth periods are restricted to periods when the thallus is hydrated from atmospheric water sources, such as rain, fog and high relative humidity. LÄS MER