Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 31 for “"high resolution microscopy"”.
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Characterization of CEACAM1 Spatial Distribution, Self-association and Dynamics using High-resolution Microscopy Techniques
… the ability of CEACAMs to form dimers and higher-order oligomers, which are thought to impact regulation of intercellular signals, add considerable complexity to our understanding of its functional role(s). Super resolution microscopy has enabled the quantitative characterization of the …
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Transport of soft materials in crowded environment
Fluorescent microscopy was used to study the transport of soft material objects in crowded environment. Delaunay triangulation and wavelet transform were adapted to extract more information from images of macromolecules with irregular shapes and heterogeneous transportation dynamics. Systems …
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Nucleation Dynamics for Water Condensation on Hydrophobic Surfaces in the Presence of Non-Condensable Gases
… gases in a custom-built condensation chamber. High-speed imaging and high-resolution microscopy enabled the experimental quantification of condensation dynamics. These were then compared to theoretical values based on the classical nucleation density. Based on the present experiments and a size …
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Strategies for Improving the Bacterial Biodegradation of PET
… resistant to degradation, mainly due to its high content of aromatic terephthalate units. While biodegradation is an environmentally friendly method for tackling this waste, it is proven to be somewhat inefficient. One contributing factor is that the temperature required for bacterial growth …
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Interrogating Host-Parasite Dynamics During Plasmodium Liver Stage Infection
… stage processes and some of these clusters were highly correlated to the expression of ApiAP2 transcription factors, containing mainly uncharacterized DNA binding motifs. Beyond transcriptional profiling, host cellular structure has been shown to be altered during P. berghei infection, but this …
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Assessing coupled mechanical behavior and environmental degradation at submicron scales
… the combination of nanomechanical testing, high resolution microscopy, diffraction, and electrochemical testing. Nanomechanical techniques were used to isolate environmental, orientation, and size effects. Material evaluation focuses on metals, both model and engineering alloys, in bulk and …
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Mechanical behavior of ultrastructural biocomposites
… and an organic phase of biomacromolecules. High resolution microscopy imaging was employed to investigate the microscale features of seashell nacre to reveal the nucleation points within tablets, the sector boundaries and an overlap between tablets of neighboring layers of [approx.] 20 %. …
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A nanofabricated amplitude-division electron interferometer in a transmission electron microscope
… interferometry is limited by the requirement of high source coherence. Amplitude-division electron interferometers, first demonstrated by Marton and co-workers in 1954, can overcome this limitation. The implementation of these interferometers is hindered by the precise rotational and …
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Using Deep Learning to Extract Multicellular Aggregation Features of Myxococcus xanthus
… network (GAN) that synthesizes fluorescence microscopy images from phase-contrast images. This approach combines the ease of phase-contrast acquisition with the quantitative advantages of fluorescence imaging, improving aggregate segmentation and enabling accurate analysis of multicellular …
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Structure Evolution of Silica Aerogel under a Microwave Field
… infrared spectroscopy, X-ray diffraction, and high resolution microscopy. The data obtained revealed that structural differences do exist between microwave- and conventionally processed samples. Three different regions were identified from the structural characterization of the samples. Regions …
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Biological effects of trogocytosis on CD4+ T lymphocytes
… TCR transgenic mouse. Using a combination of high-resolution microscopy and flow cytometry, In this thesis I showed that the trogocytosed material is retained on the surface of the T cell and is associated with sustained signaling after removal of the antigen presenting cells. The …
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Biological effects of trogocytosis on CD4+ T lymphocytes
… TCR transgenic mouse. Using a combination of high-resolution microscopy and flow cytometry, In this thesis I showed that the trogocytosed material is retained on the surface of the T cell and is associated with sustained signaling after removal of the antigen presenting cells. The …
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Geometry and transport in development
… scales of living matter. With recent advances in high-resolution microscopy, it becomes possible to track the morphology and motion of systems ranging from organelles to every single cell within specific tissues or even whole organisms. This enables quantitative physical modeling to understand the …
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Exploration of metal 3-D printing technologies for the microfabrication of freeform, finely featured, mesoscaled structures
… symmetric features, while showing ultra-high-vacuum compatibility and intrinsic electrical and thermal properties close to those of bulk metal. Characterization of binder inkjet-printed SS 316L MEMS cantilevers shows repeatable micron-level linear actuation and a near-isotropic Young's …
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The role of ZW10 and its binding partners in chromosome segregation
… unclear. I combined an RNAi technology with the high resolution microscopy to analyze the function of six microtubule-binding proteins and a checkpoint protein complex ROD/ZW 10/Zwilch (RZZ) in chromosome segregation and spindle checkpoint signaling. I discovered a non-redundant role for CLIP- …
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Nuclear magnetic resonance microscopy and diffusion
… and activation in vivo at near cellular resolution. Using biocompatible crosslinked Hemoglobin (xHb) as a contrast agent, we demonstrated partial local oxygen pressure (pO₂) monitoring in vivo with a home-built high resolution microscopy imaging probe. It is one of the most stable …
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Ultra-precise measurement of optical aberrations for Sub-Ångström transmission electron microscopy
… structures on an atomic scale by means of high-resolution transmission electron microscopy (HRTEM) impose not only extreme demands on the mechanic and electromagnetic stability of the applied instruments but require also their precise electron-optical adjustment. Today a physical resolution …
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Impact of atmospheric cycling on the release of iron and manganese into seawater from Saharan soil particles
… occurred, and was identified using high-resolution microscopy, together with a measured increase in the fraction of amorphous iron species that were leachable from the processed soil. Both treated and untreated soils were then mixed with filtered stored North Atlantic seawater in the …
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Control of sex myoblast migration in C. elegans
… governing cell migration conserved through higher organisms. Among several migration processes in C. elegans, sex myoblast (SM) migration is an attractive system that has a simple and well-defined migratory route along the ventral side from the posterior to the precise center of the gonad. A …
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