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 14 of 14 for “"Elastic Fibers"”.
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Geometry, topology and mechanics of twisted elastic fibers
Elastic rods and fibers are ubiquitous in physical and biological systems across a range of length scales, from microtubules to construction beams. In this thesis, we explore the impact of twist on the failure and stability of elastic rods by studying fragmentation and knot dynamics. We begin with …
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Defining the Role of Elastic Fibers in Tendon Mechanics
… tendon function. Elastin, the main component of elastic fibers, has unique mechanical properties including high extensibility, fatigue resistance, and elasticity; these properties are important for elastin-rich tissues such as blood vessels and the lungs that experience constant cyclic loading. …
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Pregnancy Induced Alterations of Reproductive Tract Collagen and Elastin in a Murine Model
… costing billions of dollars annually. Collagen, elastic fibers, and proteoglycans are major extracellular matrix (ECM) components found in connective tissues. Vaginal child birth, advancing age, and disruption or dysfunction of connective tissue are major risk factors of POP. In the female …
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Revisão anatômica para definição do ligamento hioepiglotico
… bone. That ligament was formed by collagen and elastic fibers, more with collagen ones. Collagen fibers were more condensate close to the hyoid bone, while elastic fibers were more condensate near the epiglottis cartilage. lt seems to be correct that the hyoepiglottis ligament can interfere in …
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The Effect of Fascicular Elastin on the Mechanical and Functional Properties of Healthy, Damaged, and Healing Tendon
… and fatigue resistance of its resulting elastic fibers. While previous work catalogued contributions of fascicular elastin across tendon type and species, the anticipated effects of elastin in fatigue and healing have not yet been explored. While previous knockout mouse models showed that …
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Processing and Properties of New Anisotropic and Mechanically Active Polymeric Composites
… method to fabricate micron-sized polymer fibers, and it has been employed in this work to develop highly anisotropic fibrous composites. Previous work has detailed the properties of using electrospinning to fabricate fibrous anisotropic composites that was achieved by embedding stiff …
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Elastic stretchable optical fibers
… enhance performance of systems, such as optical fibers, and enable new application scenarios. Here, we report the design, manufacture and characterization of elastic stretchable optical fibers. Analogous to conventional optical fibers, the elastic fibers consist of a high index core, made from a …
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Molecular structure, hierarchical assembly and stimuli-responsive mechanics of tropoelastin and elastin biomaterials
… tropoelastin, is the dominant component of elastic fibers, which confer elasticity and structural integrity to skin, lung, connective and vascular tissue. Historically, elastin's dynamic nature has precluded traditional approaches such as X-ray crystallography to understand its detailed …
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Avaliação plasmática, histológica e imunohistoquímica de biomarcadores da aterosclerose humana precoce e crônica
… macrophages, cholesterol crystals, basophilia of elastic fibers and bleeding points. The markup for LDL-r in > 56 years was diffused. In internal thoracic, the tissue marks were of low intensity and focally localized, but less intense when compared to <56 years group. The internal mammary CD36 …
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Engineering Mechanocaloric Effects and Tunable Thermal Conductivity in Amorphous Elastic Polymer Fibers
… a continuous strain-temperature engineering of elastic amorphous polymer fibers, we demonstrate unique opportunities to address both challenges in energy conversion and transfer. We developed elastic fibers, which are melt spun from an olefin block copolymer (OBC), and exhibit (1) competitive mC …
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Einfluss einer ABCC6-Defizienz auf die Remodellierung der extrazellulären Matrix in in vitro und ex vivo Gewebemodellen
… of the heterogeneous disease pseudoxanthoma elasticum (PXE) include changes in lipid homeostasis, remodeling of the extracellular matrix (ECM), ectopic calcification, and inflammation. Symptomatically, these are reflected peripherally in the dermis, retina, and vascular walls. Mutations in …
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Die Untersuchung zellulärer inflammatorischer Prozesse bei Pseudoxanthoma elasticum
The autosomal-recessive disorder Pseudoxanthoma elasticum (PXE) is characterized by progressive calcification and fragmentation of elastic fibers. The cause of PXE are mutations in the gene ATP-binding cassette subfamily C member 6 (ABCC6), encoding ABCC6, an ATP-binding transport protein. Further …
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Estudio mecánico de las arterias coronarias humanas y sus sustitutos vasculares
… deformation, are not reflected in the amount of elastic fibers. Probably the elasticity of the vessel does not only depend on the amount of elastic fibers, but more on its quality and its organisation. With the numerical simulations of the angioplasty, it is shown that the balloon flexibility in …