Scope of the conference: As a ubiquitous process of random movement, ranging from molecular up to macroscopic and even cosmic scales, diffusion is key to spreading phenomena in quite diverse areas. Bringing together scientists from disciplines as different as archaeology, ecology, epidemics, ethnology, linguistics and sociology with biologists, chemists, physicists, mathematicians and engineers, Diffusion Fundamentals VI is scheduled to highlight the astonishingly similar patterns of spreading phenomena in Humanities, Natural Sciences and Engineering.

Scope of the conference: As a ubiquitous process of random movement, ranging from molecular up to macroscopic and even cosmic scales, diffusion is key to spreading phenomena in quite diverse areas. Bringing together scientists from disciplines as different as archaeology, ecology, epidemics, ethnology, linguistics and sociology with biologists, chemists, physicists, mathematicians and engineers, Diffusion Fundamentals VI is scheduled to highlight the astonishingly similar patterns of spreading phenomena in Humanities, Natural Sciences and Engineering.

MSc, Faculty of Science, University of the Witswatersrand, 2011 / The objective of this project is to understand the details of the electronic transport in low dimensional carbon structures at low temperatures as well as high magnetic fields. The emphasis is on the quasi-2 dimensional thin grain boundary regions of nanodiamond films and one dimensional carbon nanotubes. As such nitrogen “doped” and undoped nanodiamond films were synthesized by the hot filament chemical vapor deposition method (HFCVD). The films were micro-structurally and electrically characterized using several techniques such as Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, atomic force microscopy and magnetoresistance (MR) measurements. The electronic transport properties were compared to the films deposited by microwave plasma enhanced chemical vapour deposition (MWCVD). The conductivity revealed a typical semiconducting and semi-metallic behavior for the HFCVD films depending on the nitrogen percentage in the chamber. The dephasing time of the electronic wave function was found to be weakly temperature dependant i.e. τ T-p with p < 1, a behavior reported in artificial superlattices. These results show potential application of these materials in novel nano-electronic devices. Previously the transport mechanism in nanodiamond films has been attributed to hopping conduction in the grain boundaries which is predominately disordered sp2 phases. Our studies on nanodiamond films have however shown different mechanisms in these films. We observed very little contribution from hopping and pronounced weak localization contributions in nanodiamond films. We thus establish the significance of tunneling transport in nanodiamond films. We also studied the electronic transport in films of metal filled multiwalled carbon nanotubes which show significant contribution from the hopping mechanism and a negative magnetoresistance at low fields that crosses over into positive MR at high magnetic fields.

Wong Hei Yi. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (leaves 157-175). / Abstracts in English and Chinese. / Acknowledgements --- p.i / Abstract --- p.ii / Abstract 摘要 --- p.iv / List of Figures --- p.vi / List of Tables --- p.ix / List of Abbreviations --- p.x / Table of Contents --- p.xiii / Chapter Chapter 1: --- Introduction --- p.1 / Chapter 1.1 --- Importance of Glucose in Biological System --- p.1 / Chapter 1.2 --- Glucose Transporter Families --- p.2 / Chapter 1.2.1 --- Na+-Dependent Glucose Transporters --- p.2 / Chapter 1.2.2 --- Facilitative Glucose Transporters --- p.3 / Chapter 1.3 --- Glucose Transporter Type1 --- p.7 / Chapter 1.3.1 --- Primary Structure --- p.7 / Chapter 1.3.2 --- Secondary Structure --- p.8 / Chapter 1.3.3 --- Membrane Topology --- p.8 / Chapter 1.3.4 --- Tertiary Structure --- p.9 / Chapter 1.3.5 --- Kinetics Properties --- p.11 / Chapter 1.3.6 --- Affinity Reagents --- p.12 / Chapter 1.3.7 --- Tissue Distribution --- p.13 / Chapter 1.3.8 --- Multifunctional Property --- p.14 / Chapter 1.3.9 --- Characterization of GLUT1 Gene --- p.14 / Chapter 1.3.10 --- Regulation of GLUT1 Expression --- p.15 / Chapter 1.4 --- Glucose Transporter Type 1 and the Brain --- p.17 / Chapter 1.5 --- Glucose Transporter Type 1 Deficiency Syndrome --- p.20 / Chapter 1.5.1 --- Background of GlutlDS --- p.20 / Chapter 1.5.2 --- Clinical Features of GlutlDS --- p.23 / Chapter 1.5.3 --- Genotype-Phenotype Correlations --- p.24 / Chapter 1.5.4 --- Diagnosis --- p.26 / Chapter 1.5.4.1 --- Erythrocyte Glucose Transporter Activity --- p.26 / Chapter 1.5.4.2 --- Molecular Genetic Testing of GLUT1 Gene --- p.27 / Chapter 1.5.4.3 --- Glucose Concentration --- p.27 / Chapter 1.5.5 --- Management --- p.28 / Chapter 1.5.5.1 --- Ketogenic Diet --- p.28 / Chapter 1.5.5.2 --- Medication --- p.29 / Chapter 1.5.5.2.1 --- Glutl Activator --- p.29 / Chapter 1.5.5.2.2 --- Glutl Inhibitor --- p.29 / Chapter 1.6 --- Hypothesis and Objectives --- p.31 / Chapter Chapter 2: --- Identification of the First Two Asian GlutlDS Cases --- p.33 / Chapter 2.1 --- Materials --- p.34 / Chapter 2.1.1 --- Clinical History of Suspected GlutlDS Patients --- p.34 / Chapter 2.1.2 --- Blood Samples --- p.35 / Chapter 2.1.3 --- Reagents for Zero-trans Influx of 3-OMG Uptake in Erythrocytes --- p.35 / Chapter 2.1.4 --- Reagents for Zero-trans Efflux of 3-OMG Uptake in Erythrocytes --- p.37 / Chapter 2.1.5 --- Reagents for Glutl Gene Analysis --- p.37 / Chapter 2.1.6 --- Reagents and Buffers for Reverse Transcription --- p.38 / Chapter 2.1.7 --- Reagents and Buffers for Agarose Gel Electrophoresis --- p.39 / Chapter 2.1.8 --- Reagents for Erythrocytes Membrane Preparation and Detection --- p.41 / Chapter 2.2 --- Methods --- p.46 / Chapter 2.2.1 --- Zero-trans Influx of 3-OMG Uptake in Erythrocytes --- p.46 / Chapter 2.2.2 --- Zero-trans Efflux of 3-OMG out of Erythrocytes --- p.47 / Chapter 2.2.3 --- Glutl Protein Expression --- p.48 / Chapter 2.2.4 --- GLUT1 Gene Analyses --- p.51 / Chapter 2.2.5 --- Statistics --- p.58 / Chapter 2.3 --- Results --- p.59 / Chapter 2.4 --- Discussions and Conclusions --- p.69 / Chapter Chapter 3: --- Pathogenicity of GLUT1 Mutations --- p.78 / Chapter 3.1 --- Materials --- p.79 / Chapter 3.1.1 --- Construction of Glutl-Encoding Vectors --- p.79 / Chapter 3.1.2 --- Cell Lines --- p.80 / Chapter 3.1.3 --- "Cell Culture Media, Buffers and Other Reagents" --- p.81 / Chapter 3.1.4 --- Cell Culture Wares --- p.83 / Chapter 3.1.5 --- Reagents for Transfection --- p.83 / Chapter 3.1.6 --- Reagents for Protein Determination and Western Blot Analysis --- p.83 / Chapter 3.1.7 --- Reagents and Buffers for Flow Cytometry --- p.84 / Chapter 3.1.8 --- Reagents for 2-DOG Uptake in CHO-K1 Cells --- p.84 / Chapter 3.1.9 --- Reagents and Consumables for Confocal Microscopy --- p.85 / Chapter 3.2 --- Methods --- p.86 / Chapter 3.2.1 --- Cell Culture Methodology --- p.86 / Chapter 3.2.2 --- Construction of Glutl-Encoding Vectors --- p.87 / Chapter 3.2.3 --- Construction of Glutl Mutants --- p.91 / Chapter 3.2.4 --- Establishment of Wild Type and Mutant Glutl Expressing Cell Lines --- p.92 / Chapter 3.2.5 --- Glucose Influx Assays in CHO-K1 Cells --- p.96 / Chapter 3.2.6 --- Confocal Microscopy Studies on Glutl Cellular Localization --- p.97 / Chapter 3.2.7 --- Statistics --- p.98 / Chapter 3.3 --- Results --- p.99 / Chapter 3.4 --- Discussions and Conclusions --- p.112 / Chapter Chapter 4: --- Effects of Anticonvulsive Compounds on Cellular Glucose Transport --- p.117 / Chapter 4.1 --- Materials --- p.118 / Chapter 4.1.1 --- Cell Lines --- p.118 / Chapter 4.1.2 --- Cell Culture Media --- p.118 / Chapter 4.1.3 --- Blood Sample --- p.119 / Chapter 4.1.4 --- Anticonvulsive Compounds --- p.119 / Chapter 4.1.5 --- Reagents for Zero-trans Influx of 3-OMG Uptake in Fibroblasts --- p.120 / Chapter 4.1.6 --- Reagents for Zero-trans Influx of 2-DOG Uptake in Primary Astrocytes --- p.120 / Chapter 4.1.7 --- Reagents for Total RNA Isolation --- p.121 / Chapter 4.1.8 --- Reagents and Consumables for Real-Time PCR --- p.122 / Chapter 4.2 --- Methods --- p.123 / Chapter 4.2.1 --- Cell Culture --- p.123 / Chapter 4.2.2 --- Drug Concentrations --- p.123 / Chapter 4.2.3 --- Zero-trans Influx of 3-OMG Uptake in Erythrocytes --- p.123 / Chapter 4.2.4 --- Zero-trans Influx of 3-OMG Uptake in Fibroblasts --- p.124 / Chapter 4.2.5 --- Zero-trans Influx of 2-DOG Uptake in Primary Astrocytes --- p.125 / Chapter 4.2.6 --- Gene Expression Study --- p.127 / Chapter 4.2.7 --- Statistics --- p.130 / Chapter 4.3 --- Results --- p.131 / Chapter 4.4 --- Discussions and Conclusions --- p.148 / Chapter Chapter 5: --- General Conclusions and Future Perspectives --- p.154 / References --- p.157

Graduation date: 1998

Texte remanié de: Th. doct.--Droit--Montpellier 1, 2001. / Bibliogr. p. 661-679. Index.

Akadamisk avhandling--Umeå, 1992. / Bibliogr. p. 222-230. Résumé en anglais.

Reproduction de : Thèse doctorat : Sciences économiques. Economie des transports : Lyon 2 : 2007. / Titre provenant de l'écran-titre. Bibliogr.

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