Sökning: "Erik Melin"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Erik Melin.

1. 1. Digitization in Khalimsky spaces

   Författare :Erik Melin; Uppsala universitet; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

3. 2. Digital Geometry and Khalimsky Spaces

   Författare :Erik Melin; Christer Kiselman; Gunilla Borgefors; Mikael Passare; Jean Serra; Uppsala universitet; []
   Nyckelord :Applied mathematics; Khalimsky topology; digital geometry; digital topology; Alexandrov space; digital surface; digital curve; digital manifold; continuous extension; smallest-neighborhood space; image processing; Tillämpad matematik;

   Sammanfattning : Digital geometry is the geometry of digital images. Compared to Euclid’s geometry, which has been studied for more than two thousand years, this field is very young.Efim Khalimsky’s topology on the integers, invented in the 1970s, is a digital counterpart of the Euclidean topology on the real line. LÄS MER

4. 3. Heart Rate Variability in Stress-related Fatigue, Adolescent Anxiety and Depression and its Connection to Lifestyle

   Författare :Erik Olsson; Lennart Melin; Ulf Lundberg; Uppsala universitet; []
   Nyckelord :heart rate variability; autonomic nervous system; vagal tone; allostatic load; stress; fatigue; anxiety; depression; continuous performance; attention; cardiovascular risk; lifestyle; physical activity;

   Sammanfattning : Heart rate varies constantly as a consequence of activity in the sympathetic and parasympathetic autonomic nervous systems (SNS and PNS). In short-term recordings, heart rate variability (HRV) is mostly related to the inhibitory activity of the vagal nerves, which are part of the PNS. LÄS MER

5. 4. Loyal until death (?) : The nature, measurement and predictors of loyalty in a military context

   Författare :Torbjörn Engelkes; Magnus Sverke; Torun Lindholm; Gerry Larsson; Erik Hedlund; Bo Melin; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; loyalty; behavior; measurement; dimensionality; predictors; social identity fusion; leadership; IPA; factor analysis; Swedish Armed Forces; military; extreme environment; dilemma; psykologi; Psychology;

   Sammanfattning : The overall aim of this thesis was to broaden the understanding of the concept of loyalty within a military context, by focusing on how the nature of loyalty is experienced, how it can be measured and how it can be predicted. To achieve this, the thesis was structured in three interrelated studies, which initially aimed to examine the content of loyalty within the Swedish Armed Forces (SAF), then to develop and validate a scale to measure loyalty, and finally to examine possible predictors of loyalty. LÄS MER

7. 5. Prognostic Biomarkers and Target Proteins for Treatment of High-grade Gliomas

   Författare :Linda Sooman; Simon Ekman; Johan Lennartsson; Joachim Gullbo; Michael Bergqvist; Erik Blomquist; Stefan Bergström; Beatrice Melin; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; High-grade glioma; prognostic biomarkers; combination chemotherapy; DNA methylation; FGF2; p38 MAPK; PTPN6; camptothecin; imatinib; vandetanib; EGFR; RAC1; Notch; Medical Science; Medicinsk vetenskap; Oncology; Onkologi;

   Sammanfattning : The survival for high-grade glioma patients is poor and the treatment may cause severe side effects. A common obstacle in the treatment is chemoresistance. To improve the quality of life and prolong survival for these patients prognostic biomarkers and new approaches for chemotherapy are needed. LÄS MER