Sökning: "oxygen gradient"

Visar resultat 6 - 10 av 61 avhandlingar innehållade orden oxygen gradient.

1. 6. Mitochondrial function in sepsis - Temporal evolvement of respiratory capacity in human blood cells

   Författare :Fredrik Sjövall; Lund Institutionen för kliniska vetenskaper; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; human; sepsis; severe sepsis; septic shock; platelets; mitochondria; OXPHOS; high-resolution respirometry; mitochondrial disorders; multiple organ failure; biogenesis; leukocytes; cytokines; respirometry; oxygen consumption; blood cells; temporal;

   Sammanfattning : Sepsis is a devastating disease that is caused by the host’s response to an overwhelming infectious process. As sepsis progresses, organs distant from the site of infection become affected and sepsis-induced multiple organ failure ensues. LÄS MER

3. 7. Antibacterial Strategies for Titanium Biomaterials

   Författare :Erik Unosson; Ken Welch; Håkan Engqvist; Timo Närhi; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Titanium; silver; biomaterial; antibacterial; photocatalysis; hydrogen peroxide; reactive oxygen species; combinatorial materials science; Engineering Science with specialization in Materials Science; Teknisk fysik med inriktning mot materialvetenskap;

   Sammanfattning : Titanium and titanium based alloys are widely used in dentistry and orthopedics to replace hard tissue and to mend broken bones. It has become a material of choice due to its low density, high strength, good biocompatibility and its capacity to integrate closely with the bone. LÄS MER

4. 8. The effects of reactive oxygen species and lipofuscin on the function and health of the retinal pigment epithelium

   Författare :Ulf Wihlmark; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : Age-related macular degeneration (ARJVID) is a common cause of central vision loss in elderly people. Specific treatment is possible only for selected patients. A dysfunction of the retinal pigment epithelial (RPE) cells has been proposed to help explain the pathogenesis of ARMD. LÄS MER

5. 9. Hyperoxia avoidance and aggregation behavior in C. elegans

   Författare :Annelie Persson; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; c. elegans; aggregation;

   Sammanfattning : Living in the soil, C. elegans can move in three dimensions in search for food. To navigate, it partly uses oxygen levels as a description of its habitat. Oxygen tension may indicate presence of microbial food and location with respect to the surface, where oxygen is 21%. LÄS MER

7. 10. Transport in Oxides Studied by Gas Phase Analysis

   Författare :Qian Dong; Gunnar Hultquist; W.J. Quadakkers; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas Phase Analysis; metal; oxide; platinum; vitreous silica; yttria stabilized zirconia; diatomic gas; oxidation; dissociation; permeation; uptake release.; Chemical engineering; Kemiteknik;

   Sammanfattning : The transport in oxides is studied by the use of gas phase analysis (GPA). An experimental method to identify transported species of gases and their contribution to the overall transport of gases in oxides and an experimental method to evaluate the parameters diffusivity, concentration, permeability of gases in oxides and effective pore size in oxides are developed, respectively. LÄS MER