There are two composition mechanisms in ATL that have evolved separately, and therefore are not well-aligned. These are rule inheritance and module superimposition. Both of these composition mechanisms had different goals in mind: rule inheritance aims to increase reuse at the rule level, as well as optimise the performance of the matching process, while module superimposition aims to increase ...

Model transformation languages have matured to a point where people have started experimenting with model transformation definitions themselves in addition to the language they are written in. In addition to the transformation language properties, the properties of model transformation definitions themselves become important, such as scalability, maintainability and reusability. Composition of ...

OBJECTIVE To (1) evaluate the stability of palatal rugae as landmarks for superimposition of dental casts and (2) establish a three-dimensional superimposition method of maxillary dental casts for analyzing orthodontic tooth movement. MATERIALS AND METHODS The sample consisted of dental casts obtained from 10 patients treated with extraction of bilateral maxillary first premolars and placemen...

We study the synchronization of musical sequences by means of an operation defined on finite or infinite words called superimposition. This operation can formalize basic musical structures such as melodic canons, for which we provide a construction based on the superimposition of infinite words. In the case of circular canons, we present an enumeration algorithm involving Lyndon words, which ap...

OBJECTIVE The purpose of this study was to develop superimposition method on the lower arch using 3-dimensional (3D) cone beam computed tomography (CBCT) images and orthodontic 3D digital modeling. METHODS Integrated 3D CBCT images were acquired by substituting the dental portion of 3D CBCT images with precise dental images of an orthodontic 3D digital model. Images were acquired before and a...

BACKGROUND Techniques for comparison and optimum superimposition of protein structures are indispensable tools, providing the basis for statistical analysis, modeling, prediction and classification of protein folds. Observed similarity of structures is frequently interpreted as an indication of evolutionary relatedness. A variety of advanced techniques are available, but so far the important is...

His famous dissertation, published in 1947, The Face in Profile. An Anthropological X-ray Investigation on Swedish Children and Conscripts, is an outstanding contribution. That monograph became the classic example for numerous scholars to follow so that, 25 years later, a second printing was necessary. research fellow and guest lecturer at Northwestern University in Chicago, Illinois. In 1958 h...

Despite inherent errors, cephalometric superimpositions are currently the most widely used means for assessing sagittal and vertical tooth movements. The purpose of this study was to compare three-dimensional (3D) digital model superimposition with cephalometric superimposition. The material was collected from initial and final maxillary casts and lateral cephalometric radiographs of 30 patient...

The conventional object-oriented paradigm provides part-of, inheritance and delegation relations as means for composition of objects. Although inheritance and delegation represent a considerable improvement over the module-based third generation languages, we have experienced that certain types of composability cannot be expressed using the aforementioned techniques. In some cases, the software...

One of the aims of forensic science is to determine the identities of victims of crime. In some cases the investigators may have ideas as to the identities of the victims and in these situations, ante mortem photographs of the victims could be used in order to try and establish identity through skull-photo superimposition. The aim of this study was to evaluate the accuracy of a newly developed ...