Comparison of intraoral and extraoral scanners on the accuracy of digital model articulation

Introduction: Orthodontists increasingly rely on digital models in clinical practice. The ability of modern scanners to articulate digital models must be scientifically evaluated. Methods:Twenty five digital articulated models were produced from four digital scanners in five experimental groups. The resulting inter-arch measurements were compared to the gold standard. An acceptable range of 0.5mm more or less than the gold standard was used for evaluation. Results: iTero® and iTero® Element yielded all acceptable inter-arch measurements. The 3M™ True Definition and Ortho Insight 3D® with Regisil® bite registration produced four of six acceptable inter-arch measurements. The Ortho Insight 3D® with Coprwax ™ bite registration yielded three of six acceptable inter-ach measurements. Conclusions: The iTero® and iTero® Element produced the most accurately articulated models. The 3M™ True Definition and Ortho Insight 3D® with Regisil® were the next most accurate. The Ortho Insight 3D® scanner with Coprwax ™ was the least accurate method tested

Anything goes: 2011: A concert of Cole Porter Songs (additional material)

Develop new material for concert for the Orpheus Choir Wellington for performance at the Wellington Town Hall on Oct 7, 2011. The project requires researching, devising and arranging 2 new extended medleys, "You're Sensational Medley" and "It's Too Darn Hot Medley" (a total of around 18 minutes,for Concert Choir and small orchestra editing and preparing score and parts for printing, and adapting existing concert format

International publication of compositions and arrangements for jazz choir: Hey Cinderella; Hold my heart to blame; Anything goes: From the songbook of Cole Porter (2009); Who wants to be a millionaire; and You're sensational medley

Research and develop original compositions “Hey Cinderella” arranged for Adv, Int, and Beginner levels of Jazz Choir (dur. Approx 4-5 minutes) "Hold My Heart To Blame"(selected for the Wisconsin Choral Competitions Song List) and "The Gift Of Love" for publication by Really Good Music LLC., WI., USA. Also arrangements from the concert "Anything Goes: From the songbook of Cole Porter (2009)" - "Cole Porter Latin Medley", "Who Wants To Be A Millionaire" and "You're Sensational Medley" devised and arranged for The Orpheus Choir Wellington NZ, for publication by Really Good Music LLC., WI., USA

Information and Accountants in the Role of Strategic Planning

This article on strategic planning practices is based upon a field study of five world-class companies. The strategic planning practices discussed in this article were extracted from the corporate environment. The information contained in this article, however, is of value alike to CPAs assisting with the enhancement of strategic planning practices in corporations and public accounting firms

Revisiting He-like X-ray Emission Line Plasma Diagnostics

A complete model of helium-like line and continuum emission has been incorporated into the plasma simulation code Cloudy. All elements between He and Zn are treated, any number of levels can be considered, and radiative and collisional processes are included. This includes photoionization from all levels, line transfer including continuum pumping and destruction by background opacities, scattering, and collisional processes. The model is calculated self-consistently along with the ionization and thermal structure of the surrounding nebula. The result is a complete line and continuum spectrum of the plasma. Here we focus on the ions of the He I sequence and reconsider the standard helium-like X-ray diagnostics. We first consider semi-analytical predictions and compare these with previous work in the low-density, optically-thin limit. We then perform numerical calculations of helium-like X-ray emission (such as is observed in some regions of Seyferts) and predict line ratios as a function of ionizing flux, hydrogen density, and column density. In particular, we demonstrate that, in photoionized plasmas, the $R$-ratio, a density indicator in a collisional plasma, depends on the ionization fraction and is strongly affected by optical depth for large column densities. We also introduce the notion that the $R$-ratio is a measure of the incident continuum at UV wavelengths. The $G$-ratio, which is temperature-sensitive in a collisional plasma, is also discussed, and shown to be strongly affected by continuum pumping and optical depth as well. These distinguish a photoionized plasma from the more commonly studied collisional case.Comment: 28 pages, 7 figures, accepted to Ap

Your EQ Skills: Got What it Takes?

Your EQ skills: got what it takes? So you thought the CPA exam was your last test? Read on. Question: Is success in life and career determined primarily by rational intelligence (the IQ or intelligence quotient) or emotional intelligence (the EQ or emotional quotient)? In other words, what\u27s more important: intelligence or intuition? Historically the professional accounting literature has placed little emphasis on behavioral issues such as EQ, although human behavior underlies most of what is written and taught about professional accounting. Now managers place increased value on behavioral skills that help people in the workplace. Look at this statistic: The productivity of one-third of American workers is measured by how they add value to information. Doesn\u27t that describe CPAs exactly? This article will examine the ways in which EQ is crucial to CPAs\u27 success and how they can cultivate EQ if they haven\u27t got a lot of it. The AICPA and the Institute of Management Accountants recognize that emotional intelligence skills are critical for the success of the accounting profession. In CPA Vision 2011 and Beyond: Focus on the Horizon (www.cpavision.org), the AICPA identifies emotional ..

Reshetikhin's Formula for the Jones Polynomial of a Link: Feynman diagrams and Milnor's Linking Numbers

We use Feynman diagrams to prove a formula for the Jones polynomial of a link derived recently by N.~Reshetikhin. This formula presents the colored Jones polynomial as an integral over the coadjoint orbits corresponding to the representations assigned to the link components. The large $k$ limit of the integral can be calculated with the help of the stationary phase approximation. The Feynman rules allow us to express the phase in terms of integrals over the manifold and the link components. Its stationary points correspond to flat connections in the link complement. We conjecture a relation between the dominant part of the phase and Milnor's linking numbers. We check it explicitly for the triple and quartic numbers by comparing their expression through the Massey product with Feynman diagram integrals.Comment: 33 pages, 11 figure