Introdouction: Esthetic demands of patients have led to the introduction of tooth-colored restorations wherecomposite resins are bonded to the enamel using acid etch techniques. Total etch adhesion systems are still considered as the gold standard among bonding systems. However, clinicians have a tendency to use adhesive systems with simpler application procedures. The aim of the present stu...

In airborne radargrams, undulating periodic patterns in amplitude that overprint traditional radiostratigraphic layering are occasionally observed, however, they have yet to be analyzed from a geophysical or glaciological perspective. We present evidence supported by theory these depth-periodic consistent with modulation of the received radar power due birefringence polar ice, and therefore ind...

A financial model has been developed that takes into account the impact of forms remuneration on margin strength and allows you to manage its value

Double-exposure holograms are taken of the patient's cornea after a heartbeat. The resulting stress test, or holographic interferogram, shows sharply demarcated fringe patterns outlining structurally weak areas in the cornea. Wound strength in postoperative keratoplasties is now being evaluated on a routine basis to determine the effect of topical medications and surgical techniques. All grafts...

Purpose: To evaluate the effect of NaOCl conditioning on shear bond strength and marginal sealing of resin bonded dentin with three total-etching adhesive systems. Materials and Methods: Flat dentin surfaces were prepared and received the following treatments: Group I, 35% phosphoric acid for 15 s; Group II, 35% phosphoric acid for 15 s followed by 10% NaOCl for 60 s; Group III received no addi...

In this brief, the margin of stability of two-dimensional (2D) discrete systems is considered. A new method to compute the stability margin of 2-D continuous systems is provided. Illustrative examples are also included.

This paper studies the impact of corporate tax policy on the economy in the presence of both convex and nonconvex capital adjustment costs in a dynamic general equilibrium model. We show that corporate tax policy generates both intensive and extensive margin effects via the channel of marginal Q. Its impact is determined largely by the strength of the extensive margin effect, which in turn depe...