Sökning: "functional limitation"

Visar resultat 26 - 30 av 94 avhandlingar innehållade orden functional limitation.

1. 26. Plant-microbe-soil interactions and soil nitrogen dynamics in boreal forests : development of nitrogen limitation

   Författare :Robert Blasko; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Widespread nitrogen (N) limitation of plant growth in boreal forests is a well recognized phenomenon. Yet, the mechanisms responsible for the development of N limitation are unknown. By exploring the linkage between N cycling and microbial community structure, this thesis examines the role of soil microorganisms in N limitation development. LÄS MER

3. 27. Island biogeography of young land uplift islands - viewed through the lens of bryophytes in a northern Swedish archipelago

   Författare :Andreas Karlsson Tiselius; Mats Dynesius; Roland Jansson; Göran Englund; Joakim Hjältén; Tord Snäll; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; functional data analysis; metacommunity; isolation; mosses; liverworts; sporophyte production; dispersal-establishment trade-off; ekologisk botanik; Ecological Botany; Conservation Biology; naturvårdsbiologi; Statistics; statistik;

   Sammanfattning : Increasing habitat fragmentation and rapid global warming is changing the conditions for species populations and ecological communities around the world. This presents challenges for the maintenance of biodiversity and a dominant paradigm for conservation in fragmented habitats is given by island biogeography and metapopulation (or metacommunity) ecology. LÄS MER

4. 28. Advanced all-fiber optofluidic devices

   Författare :Sebastian Etcheverry Cabrera; Fredrik Laurell; Markus Schmidt; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber optics; functional fiber probes; optofluidics; microfluidics; plasmonic; all-fiber technology; instrumentation for life-sciences.; Physics; Fysik;

   Sammanfattning : Significant technological advances of the last years have been possible by developments in Optofluidics, which is a field that deals with the integration of optics and microfluidics into single devices.The work described in this thesis is based on five scientific publications related to the use of fiber optic technology to build integrated optofluidic devices. LÄS MER

5. 29. Shoulder and upper extremity impairments, activity limitation and physiotherapeutic exercise in women with rheumatoid arthritis : a biopsychosocial approach

   Författare :Carina Boström; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :arthritis; rheumatoid; arm; pain measurement; motion range; movement; function; muscle skeletal; disability evaluation; human activities; health status indicators; exercise;

   Sammanfattning : The aim of this thesis was to evaluate both specially-designed and commonly used instruments for measuring impairments, activity limitation and health-related quality of life (overall Sickness Impact Profile (SIP)). The focus was on shoulder and upper extremity. LÄS MER

7. 30. Modelling of radiation damage and positron annihilation in metallic materials

   Författare :Qigui Yang; Pär Olsson; Bernardo Barbiellini; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Radiation damage; First-principles; Positron annihilation spectroscopy; Cu precipitation; Two-component density functional theory; Tungsten; Transition metals; Kärnenergiteknik; Nuclear Engineering; Physics; Fysik;

   Sammanfattning : The radiation damage is one of the key concerns in the research of materials used in radiation environments. In this thesis, we theoretically investigate the radiation damage phenomenon by focusing on two important topics: the defect production and evolution, and the defect characterization. The first part aims at two aspects. LÄS MER