Sökning: "generating function"

Visar resultat 11 - 15 av 242 avhandlingar innehållade orden generating function.

1. 11. Some Cases of Kudla’s Modularity Conjecture for Unitary Shimura Varieties

   Författare :Jiacheng Xia; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; special cycles; Eisenstein series; spherical designs; central L-values; unitary Shimura varieties; Jacobi forms; rational points; generating functions; the circle method; Kudla s modularity conjecture; theta series; Rankin--Selberg method;

   Sammanfattning : A common theme of the thesis is the interplay of symmetry and rigidity, which is a general phenomenon in mathematics. Symmetry is a notion related to the degree to which an object remains unchanged under transformations, and rigidity is a notion that in terms of physics can be thought of as a lack of freedom, which leads to stronger properties of an object than we normally expect. LÄS MER

3. 12. Quantification of 4D Left Ventricular Blood Flow in Health and Disease

   Författare :Jonatan Eriksson; Tino Ebbers; Carl-Johan Carlhäll; Gianni Pedrizzetti; Linköpings universitet; []
   Nyckelord :MRI; relative pressure; 4D flow; quantification; turbulent kinetic energy; dilated cardiomyopathy; magnetic resonance imaging; physiology; cardiac function; diastolic dysfunction;

   Sammanfattning : The main function of the heart is to pump blood throughout the cardiovascular system by generating pressure differences created through volume changes. Although the main purpose of the heart and vessels is to lead the flowing blood throughout the body, clinical assessments of cardiac function are usually based on morphology, approximating the flow features by viewing the motion of the myocardium and vessels. LÄS MER

4. 13. Deg/HtrA proteases of the cyanobacterium Synechocystis sp. PCC 6803 : from biochemical characterization to their physiological functions

   Författare :Xuân Tâm Lâm; Christiane Funk; Jörg Nickelsen; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Deg; HtrA; protease; chaperone; Synechocystis sp. PCC 6903; biochemical characterization; physiological function; proteomics; structure;

   Sammanfattning : The family of Deg/HtrA proteases is present in a wide range of organisms from bacteria, archaea to eukaryota. These ATP-independent serine endopeptidases play key roles in the cellular protein quality control. The cyanobacterium Synechocystis sp. LÄS MER

5. 14. Insulin-like growth factor binding protein-3 : structure and function

   Författare :Maria Ahlsén; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Insulin-like growth factor (IGF) -I and -II share structural homology with insulin. Their receptors and intracellular signaling are similar. Consequently, the biological actions of IGFs and insulin are overlapping. Insulin is secreted on demand depending on e. LÄS MER

7. 15. Molecular and cellular analysis of Lhx2 function in hematopoietic stem cells

   Författare :Karin Richter; Leif Carlsson; Andrew Elefanty; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hematopoietic stem cells; Lhx2; cell lines; self renewal; SCF; IL-6; chronic myeloproliferative disorder; global gene expression analysis; Molecular biology; Molekylärbiologi;

   Sammanfattning : The formation of blood, hematopoiesis, is a dynamic process originating from a small number of hematopoietic stem cells (HSCs). To sustain hematopoiesis throughout life HSCs have the unique capacity to differentiate into all mature hematopoietic lineages as well as generating more HSCs by a mechanism referred to as self-renewal. LÄS MER