Search for dissertations about: "δ"
Showing result 6 - 10 of 177 swedish dissertations containing the word δ.
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6. Step Edge Junctions in YBa2Cu3O7-δ High-Tc Superconductors
Abstract : This thesis describes experimental work on GdBa2Cu3O7-.delta. (GBCO) thin films, YBa2Cu3O7-.delta. READ MORE
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7. Studies of cAMP and Ca2+ signaling in pancreatic islet cells
Abstract : The blood glucose-lowering and -elevating hormones insulin and glucagon are released from the pancreatic islet β- and α-cells, respectively. The intracellular messengers Ca2+ and cAMP have central roles in controlling the secretion of both hormones, but the underlying mechanisms are incompletely understood. READ MORE
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8. α-Cell signalling in glucose-regulated glucagon secretion
Abstract : Glucagon is a blood glucose-elevating hormone released from α-cells in the islets of Langerhans during hypoglycaemia. Glucagon is critical for glucose homeostasis and inappropriate regulation of its secretion underlies both impaired counter-regulation of hypoglycaemia and chronic hyperglycaemia in diabetes patients. READ MORE
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9. Functional Interfaces in Epitaxial YBa2Cu3O7-δ with Artificial Grain Boundary Junctions
Abstract : The properties of superconducting devices based on grain boundaries in YBa2Cu3O7-δ (YBCO) thin films are determined by the atomic structure of the grain boundary plane. To obtain these devices based on single grain boundaries, biepitaxial fabrication techniques has been used. READ MORE
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10. Picosecond Infrared Detection and Optical Mixing in YBa2Cu3O7-δ Thin Films
Abstract : Studies of infrared photoresponse in high Tc superconducting YBa2Cu3O7-.delta. (YBCO) thin films are presented in this dissertation. READ MORE