Abstract We discuss the concept of characteristic squeezing modes applied to a travelling-wave optical parametric amplifier pumped by an ultrashort pulse. The characteristic modes undergo decoupled single-mode squeezing transformations, and therefore they form a useful basis to describe the evolution of the entire multimode system. This provides an elegant and intuitive picture of quantum stati...

Byzantine church design depended heavily on natural light which was used for evocative purposes. The orientation of the main axis of the church, the form of the apse and the location and size of its windows are affected by the need for sunlight to shine at the altar on a desired time and for a certain duration. Until now the process of accurately taking account of all the above parameters has b...

Micro-movement of human jaws in the resting state might influence the accuracy of direct three-dimensional (3D) measurement. Providing a reference for sampling frequency settings of intraoral scanning systems to overcome this influence is important. In this study, we measured micro-movement, or change in distance (∆d), as the change in position of a single tracking point from one sampling time ...

Boundary prediction in images as well as video has been a very active topic of research and organizing visual information into boundaries and segments is believed to be a corner stone of visual perception. While prior work has focused on predicting boundaries for observed frames, our work aims at predicting boundaries of future unobserved frames. This requires our model to learn about the fate ...

Introduction The recently proposed fractional scoring method (Schreiber, 2012) has been discounted by Leydesdorff (2012) as computationally intensive and as unnecessary complex. While his arguments are correct, I do not find his solution of attributing papers to percentile rank (PR) classes convincing. A Leydesdorff admits, his approach leads to an uncertainty depending of the applied counting ...

The underlying idea of Reich, Fuentes, and Dunson (2009) to use the asymptotic normal approximation of the quantile regression estimator as a “substitute” likelihood can be regarded as a convenient dumbing-down of the Jeffrey’s idea elaborated by Lavine (1995) and Dunson and Taylor (2005). The obvious disadvantage of the original Jeffrey’s suggestion is that it is difficult to compute/update th...

A positive list (list of positive integers) is protographic if its merger with all but finitely many positive graphic lists is graphic. Define the family Ps of s-protogaphic lists by letting P0 be the family of positive graphic lists and letting Ps for s > 0 be the family of positive lists whose merger with all but finitely many lists in Ps−1 is in Ps−1. The main result is that X ∈ Ps if and on...