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Visar resultat 1 - 5 av 147 avhandlingar som matchar ovanstående sökkriterier.
1. Magnetic Reconnection in Space Plasmas : Cluster Spacecraft Observations
Sammanfattning : Magnetic reconnection is a universal process occurring at boundaries between magnetized plasmas, where changes in the topology of the magnetic field lead to the transport of charged particles across the boundaries and to the conversion of electromagnetic energy into kinetic and thermal energy of the particles. Reconnection occurs in laboratory plasmas, in solar system plasmas and it is considered to play a key role in many other space environments such as magnetized stars and accretion disks around stars and planets under formation. LÄS MER
2. Heat and water flows in freezing and thawing soils : numerical modelling, laboratory and field observations
Sammanfattning : A laboratory study of infiltration rates into frozen and unfrozen fine sand, including temperature effects of both soil and infiltration water, is reported. The average infiltration rate varied from about 10.6 mm/min for unfrozen conditions, to about 1-2 mm/min for frozen conditions. LÄS MER
3. Work technique in lifting and patient transfer tasks
Sammanfattning : The overall aim of this thesis was to explore and develop methods for describing, analysing and assessing work technique in lifting and patient transfer tasks, and to study how the work technique is related to personal factors and aspects of patient quality and safety. The focus was on work technique features with implications for musculoskeletal load and for the development of musculoskeletal disorders. LÄS MER
4. Physical Activity and Alzheimer's Disease : Measurements, Observations and Subjective Experiences
Sammanfattning : Gait disturbances such as slow walking speed and step-to-step variability have been reported among people with mild Alzheimer’s disease (AD) and as risk factors for functional decline, dependency, and falls. Additionally, AD-related emotional reactions and decreased initiative can lead to physical inactivity. LÄS MER
5. Coloured Universe and the Russian Avant-Garde : Matiushin on Colour Vision in Stalin's Russia, 1932
Sammanfattning : Colour vision was of fundamental importance in modernist art. One reason its significance has been studied so little with regard to Russian art is that Soviet archives were inaccessible until the early 1990s. This work is the first close study on a so-called laboratory in an art- and science institute in the Soviet Union in the 1920s. LÄS MER
