Sökning: "density function"

Visar resultat 21 - 25 av 853 avhandlingar innehållade orden density function.

1. 21. The density of rational points and invariants of genus one curves

   Författare :Manh Hung Tran; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; genus one; discriminant; modular form; Elliptic curve; height; descent; determinantal representation; invariant; rational point; theta function.; determinant method;

   Sammanfattning : The present thesis contains three papers dealing with two arithmetic problems on curves of genus one, which are closely related to elliptic curves. The first problem is to study the density of rational points presented in Papers I and II. LÄS MER

3. 22. Implantation-Site Dependent Differences in Engraftment and Function of Transplanted Pancreatic Islets

   Författare :Joey Lau; Per-Ola Carlsson; Leif Jansson; Carina Carlsson; Caroline Kampf; Annika Tibell; Uppsala universitet; []
   Nyckelord :Cell biology; Type 1 diabetes; pancreatic islets; human islets; islet transplantation; vascular engraftment; revascularization; implantation-site; microenvironment; vascular density; insulin release; pro insulin biosynthesis; glucose oxidation; Cellbiologi;

   Sammanfattning : Transplanting pancreatic islets into the liver through the portal vein is currently the most common procedure in clinical islet transplantations for treating patients with brittle type 1 diabetes. However, most islet grafts fail within a 5-year period necessitating retransplantation. LÄS MER

4. 23. Pharmacological properties of radiotracers that measure p-glycoprotein function and density

   Författare :Pavitra Kannan; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Energy-dependent transporters of the ATP-binding cassette (ABC) family regulate the movement of molecules across cellular membranes. Several of these transporters are expressed in the endothelial cells of brain microvessels (blood-brain barrier) to protect brain tissue from exposure to toxins in the blood. LÄS MER

5. 24. Quantum transport in photoswitching molecules : An investigation based on ab initio calculations and Non Equilibrium Green Function theory

   Författare :Anders Odell; Anna Delin; Anders Niklasson; Jonas Fransson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; molecular electronics; electron transport; electron structure; density functional theory; non equilibrium green function theory; Electronic structure; Elektronstruktur;

   Sammanfattning : Molecular electronics is envisioned as a possible next step in device miniaturization. It is usually taken to mean the design and manufacturing of electronic devices and applications where organic molecules work as the fundamental functioning unit. LÄS MER

7. 25. Factors in secondary prevention subsequent to distal radius fracture : Focus on physical function, co-morbidity, bone mineral density and health-related quality of life

   Författare :Helena Nordvall; Jack Lysholm; Gunnevi Sundelin; Margareta Möller; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; distal radius fracture; bone mineral density BMD ; functional tests; mortality; morbidity; the SF-36; fall diary; Physiotherapy; Sjukgymnastik fysioterapi;

   Sammanfattning : In Sweden approximately 25000 distal radius fractures occur annually, which is 37 % of all fractures related to osteoporosis. In this thesis, risk factors for osteoporosis, bone mineral density (BMD) and health-related quality of life (the SF-36) were compared in patients who suffered a distal radius fracture after low energy trauma with a control group matched on the basis of age, gender, and municipality of residence. LÄS MER