Search for dissertations about: "permanence"

Showing result 1 - 5 of 22 swedish dissertations containing the word permanence.

2. 1. Interaction strength and keystone species in model food webs

   Author : Maria Christianou; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; interaction strength; keystone species; keystone links; permanence; resilience; local stability; Lotka-Volterra models; species loss;

   Abstract : Ecological communities are often exposed to different kind of disturbances of varied magnitude. The response to disturbances can be affected by, among other factors, the strength of interactions between species within the community. READ MORE

4. 2. Interaction strength and responses of ecological communities to disturbances

   Author : Maria Christianou; Bo Ebenman; Peter de Ruiter; Linköpings universitet; []
   Keywords : Species deletion; secondary extinctions; keystone species; keystone links; species reintroductions; Lotka-Volterra models; local stability; permanence; resilience; sensitivity analysis; diversity; complexity; food webs; competition communities; NATURAL SCIENCES; NATURVETENSKAP;

   Abstract : Ecological communities are continuously exposed to natural or anthropogenic disturbances of varied intensity and frequency. The way communities respond to disturbances can depend on various factors, such as number of species, structural characteristics of the community, stability properties, species characteristics and the nature of the disturbance. READ MORE

5. 3. Permanence of age-structured populations in a spatio-temporal variable environment

   Author : Sonja Radosavljevic; Vladimir Kozlov; Uno Wennergren; Bengt-Ove Turesson; Michael Chipot; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : It is widely recognized that various biotic and abiotic factors cause changes in the size of a population and its age distribution. Population structure, intra-specific competition, temporal variability and spatial heterogeneity are identified as the most important factors that, alone or in combination, influence population dynamics. READ MORE

6. 4. Changeability as a quality in textile design

   Author : Riikka Talman; Högskolan i Borås; []
   Keywords : HUMANIORA; HUMANITIES; Textiles and Fashion Design ; Textil och mode konstnärlig ;

   Abstract : The tendency to wear out and change is inherent in most materials, but – aside from a few exceptions – has been considered to be undesirable by both the industry and consumers. The work presented in this licentiate thesis suggests that, due to change in some form being an inherent property of textiles, it may be viable to look for alternative ways of designing and perceiving textiles that accept change as one of their qualities. READ MORE

7. 5. Shape and Being Shaped : Sketching with Haptics in Soma Design

   Author : Charles Windlin; Kristina Höök; Jarmo Laaksolahti; Anders Lundström; Bill Buxton; KTH; []
   Keywords : HUMANIORA; HUMANITIES; NATURVETENSKAP; NATURAL SCIENCES; Sketching; Soma Design; Constructive Design Research; Haptic Interaction Design; first-person; Människa-datorinteraktion; Human-computer Interaction;

   Abstract : Sketching is an integral part of the design process, and it often occurs in the early ideation phase where the focus is on expressing ideas, thoughts, and emotions, allowing them to take shape and making it possible to share them with others to propel the design process forwards. In principle, sketching is a process of externalising thoughts into visualisations, and it influences the creator and collaborators by enabling them to realise and reflect on the possibility and viability of their ideas and develop them further by adding to or subtracting from the sketches. READ MORE