Search for dissertations about: "Ulf Gunnarsson"

Showing result 1 - 5 of 16 swedish dissertations containing the words Ulf Gunnarsson.

2. 1. Controlling the growth of nanoparticles produced in a high power pulsed plasma

   Author : Rickard Gunnarsson; Ulf Helmersson; Nils Brenning; Holger Kersten; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Nanotechnology can profoundly benefit our health, environment and everyday life. In order to make this a reality, both technological and theoretical advancements of the nanomaterial synthesis methods are needed. READ MORE

4. 2. Titanium oxide nanoparticle production using high power pulsed plasmas

   Author : Rickard Gunnarsson; Ulf Helmersson; Grzegorz Greczynski; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : This thesis covers fundamental aspects of process control when growing titanium oxide nanoparticles in a reactive sputtering process. It covers the influence of oxygen containing gas on the oxidation state of the cathode from which the growth material is ejected, as well as its influence on the particles oxidation state and their nucleation. READ MORE

5. 3. Cancer of the Colon and Rectum : Population Based Survival Analysis and Study on Adverse Effects of Radiation Therapy for Rectal Cancer

   Author : Helgi Birgisson; Lars Påhlman; Bengt Glimelius; Ulf Gunnarsson; Ragnar Hultborn; Uppsala universitet; []
   Keywords : Surgery; cancer; colon; rectal; colorectal; survival; radiation therapy; second cancer; adverse effects; Kirurgi;

   Abstract : The Swedish Cancer Register was used to determine the relative survival rate in colon and rectal cancer and to estimate the occurrence of second cancers related to radiation therapy for rectal cancer. The Swedish Hospital Discharge Register and hospital records were used to estimate the rate of late adverse effects due to radiation therapy for rectal cancer. READ MORE

6. 4. The impact of structural factors in colon and rectal cancer surgery

   Author : Fredrik Brännström; Ulf Gunnarsson; Pia Jestin; Peter Matthiessen; Arne Wibe; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Abstract : The aim of this thesis was to investigate the importance and effect of some key-structural factors on outcome of colorectal cancer surgery.Considerable improvements in the treatment of colorectal cancer, i.e. radiotherapy, chemotherapy and operative technique, have taken place since the beginning of the 80s. READ MORE

7. 5. Femoral and Inguinal Hernia : How to Minimize Adverse Outcomes Following Repair

   Author : Ursula Dahlstrand; Ulf Gunnarsson; Gabriel Sandblom; Staffan Wollert; Andrew Kingsnorth; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; femoral hernia; inguinal hernia; adverse outcome; complication; recurrence; chronic pain; long-term pain; emergency; mortality; TEP; Lichtenstein; local anesthesia; Surgery; Kirurgi;

   Abstract : Groin hernia is common, and each year 200 repairs per 100 000 adult inhabitants are performed in Sweden. Groin hernias are either inguinal or femoral (2-4%). Elective repair is not associated with an excess mortality, but adverse outcomes include recurrence and long-term pain. READ MORE