OBJECTIVE Pain caused by orthodontic treatment can affect patient's compliance and even force them to terminate treatments. The aim of this meta-analysis is to evaluate of the analgesic effect of low level laser therapy (LLLT) after placement of the orthodontic separators. METHODS Five databases: PubMed, Embase, Cochrane library, China Biology Medicine disc (SinoMed CBM), China National Knowl...

It is shown that surface conduction can stabilize electrodeposition in random, charged porous media at high rates, above the diffusion-limited current. After linear sweep voltammetry and impedance spectroscopy, copper electrodeposits are visualized by scanning electron microscopy and energy dispersive spectroscopy in two different porous separators (cellulose nitrate, polyethylene), whose surfa...

Stephen Guattery Gary L. Miller Abstract Computing graph separators is an important step in many graph algorithms. A popular technique for computing graph separators involves spectral methods. However, there is not much theoretical analysis of the quality of the separators produced by spectral methods; instead it is usually claimed that such methods \work well in practice." We present an initia...

Our implementation follows the exact algorithm of Fomin et al. [3] which is based on listing the minimal separators, the potential maximal cliques, and then performing dynamic programming based on those structures [1, 2]. The algorithm by Fomin et al. refines the approach of Bouchitté and Todinca on some minor aspects (only considering inclusion-minimal minimal separators, trying only the so-ca...

The heating of the solar corona is likely to be due to reconnection of the highly complex magnetic field that threads throughout its volume. We have run a numerical experiment of an elementary interaction between the magnetic field of two photospheric sources in an overlying field that represents a fundamental building block of the coronal heating process. The key to explaining where, how and h...

We present a simple unified algorithmic process which uses either LexBFS or MCS on a chordal graph to generate the minimal separators and the maximal cliques in linear time in a single pass.

Recently, Gutman introduced a class of novel topological invariants named Sombor index which is defined as SOG=∑uv∈E<mfence...

In this paper we optimize the production of biodiesel using bioethanol from algae following four different transesterification paths: alkali, enzymatic and heterogeneous catalysts and supercritical conditions. The reactors are modelled using response surface methodology based on experimental results from the literature. These reactor models are implemented together with short-cut methods for th...

Applied to a chordal graph, lexicographic breadth rst search computes a perfect elimination scheme. We present a short elegant proof for this fact using only a new property of separators in chordal graphs.

Many works related to dually chordal graphs, their cliques and neighborhoods were published. We will undertake a similar study but by considering minimal separators and their properties. Moreover we find new characterizations of dually chordal graphs.