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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 104 for “"protrusion"”.
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Bimaxillary Protrusion in Trinidad and Tobago Population: Prevalence, Features and Management
<b>Aim</b>: To study Bimaxillary Protrusion in the Trinidad and Tobago population; its prevalence, features and management.<br/><br/><b>Design</b>: Two systematic reviews and meta - analyses, three cross sectional surveys, a clinical study and a retrospective study.<br/><b><br/>Subjects and …
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Elastic Deformation of a Gear Tooth Type Protrusion From a Half Plane
Made available in DSpace on 2014-12-04T23:11:11Z (GMT). No. of bitstreams: 1 6402943.pdf: 1044920 bytes, checksum: 8a7b2a5d6f3eaa0716197651e330da58 (MD5) Previous issue date: 1963
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The 5' inositol phosphatase SHIP2 regulates EGF-elicited protrusion in MTLn3 cells
… down in cells, there is an increase in membrane protrusion upon stimulation with EGF, and that recruitment of Mena to the leading edge is enhanced, implying that this increase in protrusion may be due to a change in Mena localization.
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Label-free DNA Sequence Detection Using Oligonucleotide Functionalized Fiber Probe with a Miniature Protrusion
… structures have great potential for nanometric protrusion, allowing future in-cell DNA direct detection. In addition, its quick response time leads to the potential for express diagnosis. What's more, the idea of nanoscale probe has a broad impact in scanning near-field optical microscopy …
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Cancer Protrusions on a Tightrope - Suspended Fiber Platform Reveals Protrusion Dynamics Independent of Cell Migration
… used during single cell metastasis, cytoplasmic protrusions are pivotal in surveying cells local surroundings which ultimately initiates migration of the cell body. Cancer cell migration is fairly well studied with the traditional focus on protrusion driven cell body displacement, while less is …
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3D Coiling at the Protrusion Tip: New Perspectives on How Cancer Cells Sense Their Fibrous Surroundings
… around the fiber axis) at the tip of a cell protrusion. We find that coiling dynamics are mediated by both the fiber curvature and the metastatic capacity of the cancer cells with less aggressive cancer cells showing diminished coiling. Based on these results, we explore the possibility of …
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Investigation of the actin-membrane interaction at the leading edge and its influence on membrane diffusion
… that this polymerisation is the driving force of protrusion. Much is known about the activation and regulation of this dynamic actin remodelling, but many questions about the exact nature of the interaction between the actin filaments and the plasma membrane remain. Weisswange et al (Weisswange et …
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Foamy Virus RNase H - Aktivität, Struktur und Funktion
… sich anschließenden basischen Schleife (basic protrusion) handelt. Da zu Beginn der Arbeit keine 3D-Struktur einer retroviralen RNase H mit basic protrusion bekannt war, sollte in dieser Arbeit die Struktur der PFV RNase H und die Funktion der basic protrusion bei der Substratbindung geklärt …
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Systematics of the macrourid fishes
… is a general trend from jaw precision to jaw protrusion. An index of protrusion/precision shows a negative correlation with depth. Rattails show low values of the index indicating high jaw protrusion. However, within the family the trend is towards higher jaw precision, and the …
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Measurement of flame propagation through step changes in mixture composition
… the laser ignition system induced a significant protrusion in the flame front. This protrusion smooths the transition from the flame speed of the inner mixture to that of the outer. Therefore, it was demonstrated that this setup is not suitable for the measurement of flame speed transitional …
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A Suspended Fiber Network Platform for the Investigation of Single and Collective Cell Behavior
… found that cells initiated invasion by putting protrusion on fibers; dynamics of which we captured using a contrasting network of mismatched diameters deposited orthogonally. We found that vimentin, a key intermediate filament upregulated in cancer invasion localized within a protrusion only …
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Mena 11a-isoform specific regulation of actin cytoskeleton organization and cell behavior
… Mena11a dampens growth factor-mediated membrane protrusion and attenuates G-actin incorporation to barbed ends of actin filaments. In addition, Menal Ia alters the actin cytoskeleton and decreases Arp2/3 recruitment to the leading edge of lamellipodia. Mass spectrometry analysis demonstrates that …
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Heat Transfer Augmentation Surfaces Using Modified Dimples/Protrusions
… surfaces roughened by modified dimples/protrusions. The dissertation is composed of two main parts: Part I (Chapters 2-4) for compact heat exchangers and Part II (Chapter 5) for internal cooling of rotating turbine blades. Part I consists of three phases: Phase I (Chapter 2) investigates …
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Synthesis and Crystallization of Anisotropic Polymer Colloids
… For the first type of dicolloid, the seed and protrusion parts are coated with different surface groups such that the particles maybe given charge anisotropy by varying suspension pH. To obtain the second type of dicolloid, polystyrene seed spheres are swollen with N-isopropylacrylamide (NiPAM) …
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3D integration of micro- and nanostructures into bio-analytical devices
… channel, with respect to those in the brass mold protrusion and the intermediate PDMS stamp structures. We have investigated the deformation behavior of the 3D molded poly(methyl methacrylate) (PMMA) substrate and the intermediate PDMS stamp in 3D molding through both experimentation and numerical …
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A Numerical Study of Internal Flow Effects on Skin Friction Gages
… importance of proper alignment of the sensor. Protrusion or recession of the sensing head proved to be the dominant effect on resulting forces seen by the gage, changing the output by up to 15% for head protrusion and 10% for head recession for misalignments up to +/-1% of the head diameter. …
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Changes in muskmelon perisperm envelope tissue during germination
… changes in the perisperm envelope before radicle protrusion. The cell walls of the perisperm envelope tissue were degraded starting 5 h prior to radicle emergence. An Instron was used to measure the mechanical resistance of the perisperm envelope during imbibition. The force and total energy …
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Effects of Three Lingual Conditions on Submental Muscle Activity in Healthy Young and Old Adults
… lingual elevation to the hard palate, lingual protrusion, and lingual depression. This study also examined the effects of age and gender on submental muscle activity and lingual pressure.This study found that there was no difference in mean submental muscle activation, as measured by sEMG, …
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Finite Element Analysis and Validation of Hip Joints with the Main Types of Femoroacetabular Impingement
… condition. A cam impingement is where a bony protrusion develops at the femoral head/neck junction. A pincer impingement is where a bony protrusion develops at the acetabular rim. Often, patients are seen with a combination of both impingements. The main goal of this study was to …
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Multi-object and multi-feature models of thumb anatomy for population based morphological assessment
… surfaces of the bones; the angle of volar beak protrusion; the angle of trapezial inclination; the surface areas of the articular facets; and the radii of curvature. In line with the respective hypotheses, the distance between the articular surfaces and the angle of volar beak protrusion were …
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