INTRODUCTION Transportation is an important iatrogenic endodontic error which might cause failure. This study evaluated the canal transportation caused by Neoniti and ProTaper instruments, using cone-beam computed tomography (CBCT) cross sections. METHODS AND MATERIALS This in vitro experimental study was performed on 40 mesiobuccal roots of maxillary first molars. The teeth were scanned with...

In a number of manufacturing applications, parts of circular cross-section must be centered for optimal processing or measurement. However, part form is never perfect, making accurate determination of the “centered” state of a part difficult. Imperfect inputs to the manufacturing process such as roughprocessed parts, deformation due to heat treatment, or raw formed materials present difficulty ...

This chapter explores the correlation between centering and different forms of pronominal reference in Italian, in particular zeros and overt pronouns in subject position. In previous work (Di Eugenio, 1990), I proposed that such alternation could be explained in terms of centering transitions. In this chapter, I verify those hypotheses by means of a small corpus of naturally occurring data. In...

Centering theory posits a discourse center, a distinguished discourse entity that is the topic of a discourse. A simplified version of this theory is developed in a Dynamic Semantics framework. In the resulting system, the mechanism of center shift allows a simple, elegant analysis of a variety of phenomena involving sloppy identity in ellipsis and “paycheck pronouns”.

Data matrix centering is an ever-present yet under-examined aspect of data analysis. Functional analysis (FDA) often operates with a default such that the vectors in one dimension have mean zero. We find along other identifies novel useful mode variation beyond those familiar FDA. explore ambiguities both orientation and nomenclature. Differences between centerings their potential interaction c...