Sökning: "Johanna Persson"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden Johanna Persson.

  1. 1. Surface characterization of 2D transition metal carbides (MXenes)

    Författare :Ingemar Persson; Per Persson; Justinas Palisaitis; Johanna Rosén; Vanya Darakchieva; Vincent Mauchamp; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Research on two-dimensional (2D) materials is a rapidly growing field owing to the wide range of new interesting properties found in 2D structures that are vastly different from their three-dimensional (3D) analogues. In addition, 2D materials embodies a significant surface area that facilitates a high degree of surface reactions per unit volume or mass, that is imperative in many applications such as catalysis, energy storage, energy conversion, filtration, and single molecule sensing. LÄS MER

  3. 2. Visualization and Simulation Technology in Healthcare - From a technology-centered to a human-centered perspective

    Författare :Johanna Persson; Ergonomi och aerosolteknologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; planning; education; training; technology-centered; human-centered; user involvement; participation; work environment; healthcare; simulation; Visualization;

    Sammanfattning : With the aid of modern computer technology the application of visualization and simulation technology has become increasingly important in today’s society. Through computer modelling it is possible to experience, understand and explore environments, systems or objects in two or three dimensions and to see, hear and sometimes tangibly feel them. LÄS MER

  4. 3. Family-based prevention of childhood obesity : long-term outcomes, challenges and implications for future research

    Författare :Johanna Enö Persson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background: Childhood obesity is considered to be one of the most serious health challenges of the 21st century. There have been indications that the prevalence has reached a plateau in high-income countries, yet the prevalence is increasing in poorer parts of the world. LÄS MER

  5. 4. Birch xylan modification by lactide grafting

    Författare :Johanna Persson; Ann-Christine Albertsson; Monica Ek; Mikael Lindström; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The wood based biorefinery concept has led to an increasing interest in the possibility of using hemicelluloses as a source for value added products. Hemicelluloses are dissolved in large amounts in the process liquor during kraft pulping. LÄS MER

  7. 5. Helicobacter pylori and Gastric Protection Mechanisms : An in vivo Study in Mice and Rats

    Författare :Johanna Henriksnäs; Lena Holm; Lars Engstrand; Erik Persson; Lars Fändriks; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; mucus gel layer; mucosal blood flow; mucus thickness; intra-vital microscopy; laser-Doppler flowmetry; pH-sensitive microelectrode; nitric oxide; Helicobacter pylori; bicarbonate secretion; mouse model; Fysiologi; Physiology; Fysiologi;

    Sammanfattning : The stomach is frequently exposed to hazardous agents and to resist this harsh environment, several protective mechanisms exist. Of special interest is the gastric pathogen Helicobacter pylori which causes gastritis, ulcers and cancer but the mechanism leading to these diseases are still unclear. However it is very likely that H. LÄS MER