Sökning: "Natural Needs"

Visar resultat 21 - 25 av 1147 avhandlingar innehållade orden Natural Needs.

1. 21. Wind Power and Natural Disasters

   Författare :Jon Olauson; Mikael Bergkvist; Stefan Ivanell; Uppsala universitet; []
   Nyckelord :Wind power; Natural disasters; Hybrid energy system; Meteorological model; Statistical model; Variability; Wind power integration;

   Sammanfattning : Wind power can be related to natural disasters in several ways. This licentiate thesis gives some background and introduces four papers devoted to two aspects of this relation. The first section looks into how small-scale wind energy converters (WECs) could be used to generate power after a natural disaster. LÄS MER

3. 22. Information Security in Distributed Healthcare : Exploring the Needs for Achieving Patient Safety and Patient Privacy

   Författare :Rose-Mharie Åhlfeldt; Benkt Wangler; Eva Söderström; Simone Fischer-Hübner; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer and systems science; Data- och systemvetenskap; Computer and Systems Sciences; data- och systemvetenskap; Technology;

   Sammanfattning : In healthcare, patient information is a critical factor. The right information at the right time is a necessity in order to provide the best possible care for a patient. Patient information must also be protected from unauthorized access in order to protect patient privacy. LÄS MER

4. 23. Aposematism, Crypsis and Population Differentiation in the Strawberry Poison Frog

   Författare :Andreas Rudh; Anna Qvarnström; Jacob Höglund; Michael Speed; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; co-evolution; population divergence; natural selection; sexual selection; warning colouration; Oophaga pumilio; Dendrobates pumilio; aggression; explorative behaviour; colour patterns; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

   Sammanfattning : Evolutionary transitions between the two major predator avoidance strategies aposematism and crypsis are expected to be associated with changes in many important traits of animals. However, empirical studies on populations experiencing ongoing or recent transitions between these strategies are rare. LÄS MER

5. 24. Insights into structure and dynamics of the AAA+ motor of magnesium chelatase

   Författare :Joakim Lundqvist; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bioinformatik; biomathematics biometrics; Bioinformatics; medical informatics; Rhodobacter capsulatus; Tetrapyrrole; Mutants; Magnesium chelatase; Cryo-Electron microscopy single-particle 3D reconstruction; Chlorophyll biosynthesis; AAA proteins; ATPase; medicinsk informatik; biomatematik; Molecular biophysics; Molekylär biofysik; Natural science; Naturvetenskap;

   Sammanfattning : The insertion of Mg2+ into protoporphyrin IX represents the first committed step in the chlorophyll and bacteriochlorophyll biosynthetic pathways. The reaction is catalyzed by the multisubunit enzyme Mg-chelatase, which consists of three subunits, known as I (molecular weight ~40 kDa), D (~70 kDa), and H (~140 kDa). LÄS MER

7. 25. Production Ergonomics Evaluation – Needs, Procedures and Digital Human Modeling Tools

   Författare :Cecilia Berlin; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Digital Human Modeling; Virtual Tools; Prevention; Time; Musculo-Skeletal Disorders; Cumulative; Production Ergonomics; DHM;

   Sammanfattning : In production systems, human operators may be at risk for developing work-relatedmusculoskeletal disorders (MSDs), resulting in pain, inability to work and high costs. Anincreasingly capable tool for identifying MSD risks early in the production designprocess are Digital Human Models (DHMs), although their built-in analysis tools are ingreat need of development regarding how they address time-related aspects of loadexposure. LÄS MER