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 27 for “"Laser treatment"”.
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Laser treatment of Asphaltene based Carbon Fibers
… costs and associated emissions. Notably, the pre-treatment of precursors, melt spinning, stabilization, carbonization, and graphitization steps contribute significantly to costs, energy consumption, and greenhouse gas emissions. Consequently, there is a need for cost-effective processing …
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Laser treatment of hemangiomas using spectroscopic feedback : the "smart scalpel"
… "Smart Scalpel") as an alternative approach to treatment of skin hemangiomas like nevus flammus (port wine stain or PWS). Current PWS phototherapy relies on selective absorption of optical radiation by the ectactic blood vessels in a PWS resulting in thermally mediated vessel necrosis. Although …
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CO₂ Laser Treatment in Urogynecological Conditions // Лечение с СО2 лазер при урогинекологични състояния
… minimally invasive therapeutic approach: CO₂ laser treatment. Urinary incontinence is a common condition, particularly among women in reproductive maturity and the climacteric period, leading to substantial impairments in quality of life and imposing social and economic burdens. Despite the …
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New minimally-invasive laser treatment in orthopaedics on spinal deformations and bone tumours
Three completely new, minimally-invasive laser operation techniques were developed and extensive investigations were carried out for a clinical application in orthopaedics. With a focus on laser tissue interactions, this work covers a broad range of different applications from cw to femtosecond …
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Clinical and Experimental Approach to the Benefits and Risks of Laser Treatment for Diabetic Macular Edema
… intervals to identify subjects in need of treatment. In Sweden, the recommended screening interval for type 2 diabetic subjects with no diabetic retinopathy is 3 years. Laser treatment for diabetic macular edema has been used for decades, but studies have reported conflicting results …
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Adult hippocampal neurogenesis: traumatic brain injury-induced dysregulation and therapeutic potentials of a novel non-invasive nano-pulsed laser treatment
… combining the benefits of both near infrared laser light (808nm) and ultrasound waves, to correct neurogenesis dysfunction in the hippocampus of rats subjected to fluid percussion injury (FPI). I found that a single five minutes transcranial application of NPLT, one hour after FPI, …
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Adult hippocampal neurogenesis: traumatic brain injury-induced dysregulation and therapeutic potentials of a novel non-invasive nano-pulsed laser treatment
… combining the benefits of both near infrared laser light (808nm) and ultrasound waves, to correct neurogenesis dysfunction in the hippocampus of rats subjected to fluid percussion injury (FPI). I found that a single five minutes transcranial application of NPLT, one hour after FPI, …
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Investigation into laser re-melting of inconel 625 HVOF coating blended with WC
… WC particles onto steel (304) is considered and laser re-melting of the resulting coatings is examined. Laser re-melting process is modeled to determine the melt layer thickness while temperature increase is formulated using the Fourier heating law. The morphological and metallurgical analyses …
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Laser manufacturing of multi-functional and antibacterial surfaces for orthopaedic applications
… a range of devices can be as high as 25% and treatment is often costly with a much higher chance of reoccurring infections after the first one1. Laser surface treatment of commercially pure titanium (cp Ti or medical grade 2), which is a commonly used material in medical devices has been shown …
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Effect of Laser Induced Crystallinity Modification on Degradation and Drug Release of Biodegradable Polymer
… of PLLA degradation and drug release over time. Laser irradiation is used in this study to induce surface melting and resolidification. The high cooling rate of the laser treatment coupled with the slow polymer crystallization kinetics leads to reduced surface crystallinity after the laser …
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The effects of Nd:YAG laser cyclophotocoagulation on corneal sensitivity, intraocular pressure, aqueous tear production and corneal nerve morphology in the canine eye
… with prolonged healing following Nd:YAG laser cyclophotocoagulation in dogs is a frequent complication. It is hypothesized that these corneal ulcerations may be a form of neurotrophic keratitis due to laser-induced damage to corneal innervation. Fifteen clinically normal dogs had the …
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Laser surface modification of biomedical alloys
This study investigated the effects of high speed laser surface modification on 316L stainless steel and Ti-6Al-4V for biomedical implants application. Laser processing was carried out in an inert argon environment using a 1.5 kW CO2 laser. Parameters investigated in this work included irradiance, …
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Análisis coste efectividad entre la cordectomía transoral con láser CO2, la cordectomía por laringofisura y la radioterapia en el tratamiento del carcinoma glótico en estadios iniciales
… in health sciences in the particular case of the treatment of vocal cord carcinoma. Currently for the treatment of squamous cell carcinoma of vocal cord there are three established treatments, the cordectomy by laryngofissure or open-surgery, external radiation therapy and endoscopic surgery with …
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Retinopathy of Prematurity in a cohort of neonates at Groote Schuur Hospital
… studies at GSH did not detect ROP requiring treatment. However, improved survival of very low birth weight infants may affect the prevalence of ROP. Objectives: The study objectives were to: i) Determine the prevalence and severity of ROP in a prospective cohort of premature infants; ii) …
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Comparative Study of the Effects of Conventional Physiotherapeutic Complex and High-Energy Laser in Patients with Glenohumeral Joint Peritendinitis // Сравнително проучване на ефектите на конвенционален физиотерапевтичен комплекс и високоенергиен лазер при пациенти с перитендинит на гленохумерална става
… improvement, of Multiwave Locked System (MLS) laser energy treatment and the combined therapy of microwave diathermy and interference current, in patients with glenohumeral joint peritendinitis. Data from 76 patients with acute glenohumeral joint peritendinitis were prospectively collected. The …
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Development of a coherent optical imaging system for clinical dermatology
… optical subsystem includes a wavelength-swept laser source, a fiber optic interferometer with a delay stage and a polarization-sensitive balanced receiver. All power supplies, control drivers and monitoring circuits are integrated and enclosed in a case with a control interface. The microscope …
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Mechanistic and therapeutic evaluation of a novel antiantiogenic small molecule
… million elderly Americans. The current approved treatments target the dominant angiogenic mediator, vascular endothelial growth factor (VEGF). However, repeated injections of anti-VEGF drugs can cause ocular and systemic side effects, and about 30% of wet AMD patients are non-responsive. There is …
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Investigation of intermediate layer for Ag/Si metal-semiconductor contacts
… in order to improve the quality of films, Nd:YAG laser were used as structural treatment. The thickness of top Ag layer is kept constant with different intermediate layer applied onto substrate.The characterizations were investigated by atomic force microscopy (AFM), four point probe (FPP) …
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Laser surface treatment of materials with presence of carbides at the surface.
Some of the studies associated with laser assisted processing including machining, surface treatment applications, and electrochemical response of the selective surfaces were carried out prior to the thesis work by the thesis author. In the light of the previous studies, additional study on laser …
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The Study of Serial Histochemical Changes in Laser-related Post-inflammatory Hyperpigmentation
… changes are frequently encountered problems of laser treatment. However, their underlying mechanisms and pathogenesis are not fully understood. To elucidate how melanocyte-specific proteins and paracrine melanogenic factors are regulated by laser surgery, time-sequential immunohistochemical …
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