direct composite resin restorations are widely used and the impact of different storage temperatures on composites is not well understood. the purpose of this study was to evaluate the microtensile bond strength of composite to dentin after different pre-curing temperatures.occlusal surfaces of 44 human molars were ground with diamond burs under water coolant and polished with 600 grit silicon ...

©Copyrights 2013. The Korean Academy of Conservative Dentistry. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Prepare the pre-heated comp...

Recently the two-loop next-to-leading logarithmic (NLL) virtual corrections to arbitrary processes with massless external fermions have been calculated. Within the spontaneously broken electroweak theory the oneand two-loop mass singularities have been derived to NLL accuracy and expressed as universal correction factors depending only on the quantum numbers of the external particles. This talk...

This paper summarizes two studies and the contemporary literature on the design and construction of effective and efficient Computer Based Learning (CBL) environments. There is adequate evidence on Distance Learning environments, however CBL environments provide some special characteristics that separate them from their Distance counterparts, while they have to adhere to educational principles,...

ON THE EFFECTIVE BEHAVIOR, MICROSTRUCTURE EVOLUTION, AND MACROSCOPIC STABILITY OF ELASTOMERIC COMPOSITES

In this paper, we construct a supersymmetric composite axion (c-axion) model based on the gauge group SU(N) × SU(M), which is one possible physical application of the N=1 duality. The dual of SU(M) is interpreted as the color gauge group. We illustrate the existence of c-axion for the case of one dual quark in the dual gauge group SU(M̃ ). 14.80.Mz, 11.30–j, 11.30.Pb Typeset using REVTEX E-mail:...

Synthesis, structure, properties, main reactions, and applications of graphenes are reviewed. It is shown that these compounds possess unique properties, which can be successfully used for a series of applications, mainly as nanodevices and composite materials.

North American composites including laminated veneer lumber, oriented strandboard, and medium density fiberboard were treated by vapor boron technology and subsequently tested in static bending. Tensile properties were also determined for the two composite boards. The study was designed as 3 x 2 factorial with three treatment levels and two mill locations for each composite type. In general, mi...

We show that composite fermions with masses much smaller than the scale of confinement arise naturally in certain models which admit dynamical breakdown of chiral symmetry. The models are such that to leading order some of the fermions remain massless but pick up small dynamical masses at subleading order.