Ceramic Thermal Barrier Coatings (TBCs) on superalloy components are being used successfully in land-based gas turbine and aircraft engines. These coatings are generally made by either air plasma spraying (APS) or electron beam physical vapour deposition (EB-PVD). In general, EB-PVD TBCs have superior durability due to the columnar structure, but they are very expensive compared to APS TBCs. EB...

OBJECTIVE The aim of this study was to investigate the relationship between platelet-to-lymphocyte ratio (PLR), an easily available inflammatory marker, and coronary artery ectasia (CAE). METHODS After applying the exclusion criteria, the retrospective study population consisted of 330 patients, including 110 patients with isolated CAE, 110 with obstructive coronary artery disease (CAD), and ...

This report reviews current knowledge of the ultrastructural features of the vitreoretinal juncture in its normal state, in eyes with posterior vitreous detachment (PVD), and in eyes with epiretinal membranes (ERM's) and then presents new concepts concerning the interrelationship of ERM's and the vitreous. Results show no vitreous residues on retinal surface following uncomplicated rhegmatogeno...

PURPOSE To report the incidence of posterior vitreous detachment (PVD) after uneventful state-of-the-art small-incision phacoemulsification with implantation of a posterior chamber intraocular lens (PC IOL). SETTING Department of Ophthalmology, Ludwigshafen Hospital, Ludwigshafen, Germany. METHODS This prospective study evaluated the vitreous status of eyes by biomicroscopic examination, in...

PURPOSE To assess optical coherence tomography (OCT) for diagnosing posterior vitreous detachment (PVD) at the macular region compared to kinetic B-scan ultrasonography. METHODS In the present study, the authors prospectively investigated the frequency of PVD at the posterior pole utilizing ocular kinetic B-mode sonography in 315 eyes of 188 patients (113 female, 75 male; mean age, 72.8 years...

Endothelial cell injury and activation in the placenta are features of placental vascular disease (PVD). While advances in PVD have been made, the pathogenesis of this disease is still unknown. The objective of this study was to pursue potential risk factors and signal transcription pathways involved in PVD pathogenesis. Gene expression in subjects with PVD and with normal pregnancies was compa...

Neuropsychological studies indicate that new-onset childhood absence epilepsy (CAE) is associated with deficits in attention and executive functioning. However, the contribution of these deficits to impaired academic performance remains unclear. We aimed to examine whether attention and executive functioning deficits account for the academic difficulties prevalent in patients with new-onset CAE...

PURPOSE To identify possible risk factors for the development of posterior vitreous detachment (PVD). DESIGN Retrospective case-control study. METHODS A total of 138 cases with PVD and 114 age-matched controls were accrued from two different sites. Demographic, medical, ocular, and lifestyle data were obtained through chart review, questionnaires, and clinical examination. A 108-item semiqu...

BACKGROUND Primary phakic rhegmatogenous retinal detachment (RRD) without posterior vitreous detachment (PVD) represents a unique clinical entity that behaves differently from RRD associated with PVD. While previous studies have reported the long term findings in the fellow eye of patients with RRD and PVD, the outcome of the fellow eye of patients with RRD without PVD is not known. METHODS C...