Sökning: "tomas brodin"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden tomas brodin.

1. 1. Predator effects on behaviour and life-history of prey

   Författare :Tomas Brodin; Frank Johansson; Bradley Anholt; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; activity; behaviour; behavioural syndromes; damselfly; development; growth; life-history; predator-prey interaction; predation risk; thinning; Freshwater ecology; Limnisk ekologi;

   Sammanfattning : In this thesis I investigate predator-induced effects on behavioural and life-history characteristics of prey. At any moment a given predator is capable of attacking a small number of prey. LÄS MER

3. 2. The Cardiac State Diagram : A new method for assessing cardiac mechanics

   Författare :Jonas Johnson; Lars-Åke Brodin; Tomas Jansson; KTH; []
   Nyckelord :Cardiac State Diagram; Heart; Hydraulic; Mechanics; DAPP; DeltaV; Hydraulic forces; left ventricular; diastole; Applied Medical Technology; Tillämpad medicinsk teknik;

   Sammanfattning : .... LÄS MER

4. 3. Using airborne eDNA to study ecosystem dynamics

   Författare :Edvin Karlsson; Per Stenberg; Mats Forsman; Tomas Brodin; Donald J Baird; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : In this era of global biodiversity crisis, the need to monitor ecological communities over space and time is more pressing than ever to effectively direct biodiversity conservation and management efforts. To understand the natural dynamics of an ecosystem, and the impact of anthropogenic activities related to environmental and climate change, long time series are needed to accurately link such processes to ecosystem change. LÄS MER

5. 4. Fish on drugs : behaviour modifying contaminants in aquatic ecosystems

   Författare :Annelie Lagesson; Jonatan Klaminder; Tomas Brodin; Kathryn Arnold; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Aquatic ecosystems; Behavioural effects; Ecotoxicology; Endocrine disruptors; Pharmaceuticals; Interaction effects; ekotoxikologi; Ecotoxicology;

   Sammanfattning : Contamination of surface waters is a worldwide problem. One group of emerging contaminants that reach aquatic ecosystems via sewage treatment plant effluents and agricultural run-offs is pharmaceuticals. LÄS MER

7. 5. Ultrasonic Quantification of Skeletal Muscle Dynamics : Feasibility and Limitations

   Författare :Frida Lindberg; Lars-Åke Brodin; Christer Grönlund; Tomas Jansson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ultrasound; skeletal muscle; intramuscular; dynamics; Tissue Doppler Imaging; Speckle Tracking; strain; quantification;

   Sammanfattning : Pain and disorders of the human skeletal muscles are one of the most common reasons for medical consultations in the western countries today and there is a great need to improve both the understanding and treatment of several different muscular conditions.Techniques describing the muscle function in vivo are often limited by either their invasiveness or lack of spatial resolution. LÄS MER