Most interesting problems do not have solutions that are simple mappings from the inputs to the correct outputs; some kind of internal state or memory is needed to operate well or optimally in these domains. Traditionally, genetic programming has concentrated on solving problems in the functional/reactive arena. This may be due in part to the absence of a natural way to incorporate memory into ...

Local structure of the Fe-doped La1−xCaxMnO3 (x=0.00-1.00) compounds has been investigated by means of Mössbauer spectroscopy. 57Fe Mössbauer spectra provide a direct evidence of Jahn-Teller distortion in these manganites. On the basis of Mössbauer results, the Jahn-Teller coupling was estimated. It is noteworthy that Ca-concentration dependence of Jahn-Teller coupling strength is very consiste...

Perovskite oxides are already widely used in industry and have huge potential for novel device applications thanks to the rich physical behaviour displayed in these materials. The key to the functional electronic properties exhibited by perovskites is often the so-called Jahn-Teller distortion. For applications, an electrical control of the Jahn-Teller distortions, which is so far out of reach,...

The doubly degenerate core-excited Pi state of CO2 splits into two due to static Renner-Teller effect. Using the triple-ion-coincidence momentum imaging technique and focusing on the dependence of the measured quantities on the polarization of the incident light, we have probed, directly and separately, the linear and bent geometries for the B1 and A1 Renner-Teller pair states, as a direct proo...

In this paper, we document the development of a learning algorithm that rates the popularity of a song on a scale of 0 to 5, using a carefully chosen set of musical features. Along with personal interest, the main motivation is to be able to help both the artists and label/advertisement companies in the music industry. We considered two different datasets (MP3 and MSD) and we tried to mitigate ...

A hidden nonlinear bosonized supersymmetry was revealed recently in Pöschl-Teller and finite-gap Lamé systems. In spite of the intimate relationship between the two quantum models, the hidden supersymmetry in them displays essential differences. In particular, the kernel of the supercharges of the Pöschl-Teller system, unlike the case of Lamé equation, includes nonphysical states. By means of L...

Much recent progress has been made theoretically and computationally towards understanding the importance of conical intersections for chemical reactions. Nonetheless, experimental characterization of conical intersections has proven extremely difficult with one striking exception: the Jahn-Teller conical intersection. This article overviews the fundamental similarity of a variety of conical in...

This paper clearly defines the problem to be discussed: if the distortion from the tetrahedral to D2d is caused by Jahn Teller. The introduction explains the reason for the assumption of Jahn Teller distortion using solid rational. The introduction for the possibility that this effect could be due to other factors is also involved in the introduction along with some compelling rationale to argu...