PURPOSE To evaluate the anatomic and functional results of optical pachymetry-guided custom excimer laser-assisted lamellar keratoplasty in keratoconus patients. SETTING Eye Clinic, University of L'Aquila, L'Aquila, Italy. DESIGN Prospective noncomparative case series. METHODS Patients with keratoconus having unilateral surgery using custom excimer laser-assisted lamellar keratoplasty wer...

PURPOSE The modified Hughes procedure is used to reconstruct full-thickness lower eyelid defects. A tarsoconjunctival flap from the upper eyelid replaces the posterior lamella, whereas a skin graft, a skin flap, or a skin-muscle flap restores the anterior lamella. The conjunctival pedicle from the upper eyelid is divided after vascularization of the reconstructed lower eyelid is judged to be ad...

OBJECTIVES This study aims to compare the treatment efficacy of middle turbinate lateral lamella resection alone with septoplasty plus middle turbinate lateral lamella resection for nasal stuffiness in two patient groups using the nasal obstruction symptom evaluation (NOSE) scale in patients with concomitant minimal nasal septum deviation and concha bullosa. PATIENTS AND METHODS A total of 80...

A rigorous design using periodic silicon (Si) gratings as absorbers for solar cells in visible and near-infrared regions is numerically presented. The structure consists of a subwavelength Si grating layer on top of an Si substrate. Ranges of grating dimensions are preliminary considered satisfying simple and feasible fabrication techniques with an aspect ratio defined as the ratio of the grati...

Magnetic materials with competing magnetocrystalline anisotropy and dipolar energies can develop a wide range of domain patterns, including classical stripe domains, branching, topologically trivial nontrivial (skyrmionic) bubbles. We image the magnetic pattern ${\mathrm{Fe}}_{3}{\mathrm{Sn}}_{2}$ by force microscopy study its evolution due to geometrical confinement, fields, their combination....

The connective tissue sheath surrounding the nervous system of Locusta migratoria has been studied histochemically. It consists of an outer non-cellular layer, the neural lamella, and an inner layer of cells, the sheath-cells. The neural lamella has been identified as being composed of a collagen-type protein and neutral mucopolysaccharide on the evidence of its histochemical reactions and the ...

Arc-shaped bundles of microfilaments are frequently found beneath the dorsal surface of the leading lamella of chick embryo fibroblasts. These structures, called arcs, form parallel to, and 2-10 micron from the leading edge of the lamella and they then move centripetally through the lamella and disappear in front of the cell nucleus. Arcs move centripetally at a mean speed of 1.33 (+/- 0.08 S.E...

The study of the mechanical properties of materials at nanoand sub-micrometer scales is motivated by increasing need for such materials due to miniaturization of engineering and electronic components, development of nanostructured materials, thin film technology and surface science. When the material volume is lowered, characteristic dimensions are reduced that control the material properties a...

Protrusion of the leading edge of migrating epithelial cells requires precise regulation of two actin filament (F-actin) networks, the lamellipodium and the lamella. Cofilin is a downstream target of Rho GTPase signaling that promotes F-actin cycling through its F-actin-nucleating, -severing, and -depolymerizing activity. However, its function in modulating lamellipodium and lamella dynamics, a...