Sökning: "SNS"

Visar resultat 11 - 15 av 35 avhandlingar innehållade ordet SNS.

1. 11. Theory of Electron Transport in Superconducting Heterostructures

   Författare :Magnus Hurd; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis deals theoretically with electron transport in superconducting heterostructures. Depending on the system I use different theoretical approaches. The thesis contains an introduction followed by four research papers (Papers I-IV). The introduction gives the background of the work in Papers I-IV. LÄS MER

3. 12. 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

4. 13. Transcriptional regulation in neuroblastoma cells under normoxic and hypoxic conditions

   Författare :Annika Jögi; Institutionen för translationell medicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; oncology; cancerology; Cytologi; onkologi; cancer; Cytology; HIF-2; HIF-1; hypoxia; Id; HES-1; bHLH; Neuroblastoma; neuronal differentiation;

   Sammanfattning : The childhood malignancy neuroblastoma develops from early cells of the sympathetic nervous system (SNS), and the tumors often produce catecholamines. Neuroblastoma cells retain several characteristics of immature sympathetic cells including the expression of a number of transcription factors normally expressed during embryogenesis. LÄS MER

5. 14. Notch Signaling in Human Neuroblastoma Cells

   Författare :Marie Stockhausen; Institutionen för translationell medicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; oncology; Hes-1; Medicin människa och djur ; Medicine human and vertebrates ; hypoxia; TGF-alpha; EGFR; ERK1 2; Ras MAPK; differentiation; valproic acid; ubiquilin-1; neuroblastoma; Hash-1; Cytologi; onkologi; cancer; cancerology; Cytology; Notch;

   Sammanfattning : Neuroblastoma is a childhood tumor derived from the sympathetic nervous system (SNS). It is believed that the tumors arise from cells halted in their differentiation and due to their immature phenotype; they express proteins normally only detected during embryogenesis. One such protein is Hash-1, which is required for formation of the SNS. LÄS MER

7. 15. Privacy-awareness in the era of Big Data and machine learning

   Författare :Xuan-Son Vu; Lili Jiang; Erik Elmroth; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Differential Privacy; Machine Learning; Deep Learning; Big Data; datalogi; Computer Science;

   Sammanfattning : Social Network Sites (SNS) such as Facebook and Twitter, have been playing a great role in our lives. On the one hand, they help connect people who would not otherwise be connected before. LÄS MER