Sökning: "x = o"

Visar resultat 21 - 25 av 369 avhandlingar innehållade orden x = o.

  1. 21. Gymnasieelevers presentationer av relationer mellan miljö och människor – en studie om utbildning för hållbar utveckling

    Författare :Kajsa Nerdal; David O Kronlid; Kjell Haraldsson; Eva Friman; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Relations; Education for Sustainable Development; Environment; Humanity; Participatory Modeling; Complexity; Relationer; Utbildning för hållbar utveckling; Deltagande modellbygge; Pluralism; Social and Economic Geography; Kulturgeografi;

    Sammanfattning : This study investigates how upper secondary school students constitute relations between the environment and humanity. The aim of the study is to analyse relations that emerge between and within the Earth´s major systems (humanity included) and how these relations are composed when students are faced with a fictional decision of consuming a pair of jeans. LÄS MER

  3. 22. Seawater pH as a Controlling Factor in Macroalgal Calcification and Photosynthesis

    Författare :Immaculate Sware Semesi; Mats Björk; Sven Beer; O. P. Rui Santos; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Calcareous macroalgae; CO2; mussels; pH; seagrasses; tropical lagoons; Plant physiology; Växtfysiologi; Plant Physiology; växtfysiologi;

    Sammanfattning : Biological calcification and photosynthesis are important processes with a great influence on both structure and function of oceanic ecosystems. The pH of the seawater has a strong influence on both these processes and therefore the impacts of different pH levels on calcareous macroalgae were investigated in laboratory and field experiments at Chwaka and Fumba Bays in Zanzibar, Tanzania. LÄS MER

  4. 23. Restoration of semi-natural grasslands : Impacts on biodiversity, ecosystem services and stakeholder perceptions

    Författare :Emelie Waldén; Regina Lindborg; Sara A O Cousins; Erik Öckinger; Aveliina Helm; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Biodiversity; Ecosystem services; Farmer; Landscape ecology; Plant; Policy; Restoration; Semi-natural grassland; Biologisk mångfald; Ekosystemtjänster; Landskapsekologi; Lantbrukare; Naturbetesmark; Policy; Restaurering; Växter; Äng; Physical Geography; naturgeografi;

    Sammanfattning : Humans play a major role shaping the living conditions for not only ourselves, but also all other species on Earth. In fact, some species-rich habitat types require human management to uphold the biodiversity and related ecosystem services. LÄS MER

  5. 24. Characterization of Process-related Defects in Silicon Carbide by Electron Microscopy

    Författare :Per O. Å. Persson; Pirouz Pirouz; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Silicon carbide (SiC) is a semiconducting material, which provides advantages compared to other available semiconducting materials. Attractive properties of SiC are the wide bandgap (2.2-3.3 eV), high electric breakdown field (3x106 Vcm-1), high thermal conductivity (5 Wcm-1 K-1) and the chemical stabi!ity. LÄS MER

  7. 25. In Vitro Studies of the Substrate Specificities of Heparan Sulfate 2-O- and 6-O-sulfotransferases

    Författare :Emanuel Smeds; Marion Kusche-Gullberg; Ulf Lindahl; Catherine L. R. Merry; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; heparan sulfate; heparin; sulfotransferase; 2-O-sulfotransferase; 6-O-sulfotransferase; polysaccharide biosynthesis; glycosaminoglycan; O-sulfotransferase; proteoglycan; Biokemi; Biochemistry; Biokemi;

    Sammanfattning : Heparan sulfate (HS), a linear negatively charged polysaccharide located at the cell surface and in the extracellular matrix, interacts with, and thereby regulates the functions of numerous proteins. HS-protein interactions depend on the fine structure of HS, especially its sulfation pattern. LÄS MER