Sökning: "cluster correlation"

Visar resultat 16 - 20 av 97 avhandlingar innehållade orden cluster correlation.

1. 16. Correlating Nanostructure and Electronic Properties of Organic Semiconductors by Electron Microscopy

   Författare :Gustav Persson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D; transmission electron microscopy; clustering; molecular dopant; nanostructure; structure-property correlation; visualisation; concentration; organic semiconductor;

   Sammanfattning : Organic semiconductors enable fabrication and efficient processing of electronic devices with light weight, mechanical flexibility and tuneable properties. Despite significant progress in the last decades, efficiencies and long-term stabilities of these systems still need to be improved. LÄS MER

3. 17. Omics Data Analysis of Complex Diseases and Traits

   Författare :Saman Hosseini Ashtiani; Arne Elofsson; Dirk Repsilber; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Omics data; RNA-seq; Microarrays; Metabolomics; Network analysis; Psoriasis; E. coli; Hip osteoporosis; Lung adenocarcinoma; Spearman s correlation coefficient; LC-MS; PCA; DEG; PPI; biokemi med inriktning mot bioinformatik; Biochemistry towards Bioinformatics;

   Sammanfattning : Following the advent of the high-throughput techniques for producing massive omics data, new possibilities and challenges have also emerged in different fields of biology and medicine. Dealing with such data on different scales with different scopes such as genomics, transcriptomics, proteomics and metabolomics, demands appropriate data collection, preprocessing, statistical analysis, interpretation and visualization. LÄS MER

4. 18. Imaging mass spectrometry for in situ lipidomics: from cell structures to cardiac tissue

   Författare :Sanna Sämfors; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Myocardial infarction; PC12 cells; Cell membrane; Mass spectrometry imaging; Sample preparation; Lipidomics; ToF-SIMS; Gas cluster ion beam;

   Sammanfattning : Imaging of cells and tissues is important for studying different processes within biological systems due to the spatial information provided for different molecular species during imaging. One powerful imaging technique is mass spectrometry imaging (MSI). LÄS MER

5. 19. Antiretroviral therapy among HIV-infected persons in northeastern Vietnam : impact of peer support on virologic failure and mortality in a cluster randomized controlled trial

   Författare :Cuong Do Duy; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :HIV;

   Sammanfattning : Background: Wide access to antiretroviral therapy (ART) has substantially improved the prognosis of patients living with HIV/AIDS (PLHIV). However, in resource-limited countries, sustaining ART programs to prevent drug resistance and treatment failure and to maximize the existing human resources is still challenging. LÄS MER

7. 20. Towards a relativistically covariant many-body perturbation theory - With numerical implementation to helium-like ions

   Författare :Daniel Hedendahl; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; many-body perturbation theory; bound state QED; helium-like ions; Green s operator; covariant evolution operator; combined effects of QED and correlation; atomic structure calculations;

   Sammanfattning : The experimental results for simple atomic systems have become more and more accurate and in order to keep up with the experimental achievements the theoretical procedures have to be refined. Recent accurate experimental results obtained for helium-like ions in the low- and moderate-Z regions proclaim the importance of theoretical calculations that combines relativistic, QED and electron correlation effects. LÄS MER