Frontiers in Aging Neuroscience www.frontiersin.org May 2010 | Volume 2 | Article 6 | 1 age-related mechanisms also take into account a high level of conservation among many epigenetic processes known to be lost in nematodes and fl ies which have extremely short lifecycles and particularly derived genomes (Figure 1). Most importantly, Aplysia posses the largest nerve cells (ranging from 30 to 1...

The transition operator T for the scattering of a particle from N potentials Vj(x) can be expanded into a series featuring the transition operators tj associated with the individual potentials. For Vj(x) both absolutely and square integrable in x, we show, using an analytic continuation argument, that if T is on-shell, i.e. in < k|T (σ2 ± i0)|k′ >, |k| = |k′| = σ, then each tj is also on-shell....

The article describes the results of research on content and ratio photosynthetic pigments in stipules winter peas using different cultivation technologies. objects study were pea plants (Pisum sativum L.) variety NS Moroz, plant growth regulator (PGR) Endofit L1 RK, bacterial preparation Bioinoculant BTU-r, microfertilizers «LF-Bobovi» Biobor 140. purpose our was to formation under action Endo...

This paper describes an airborne deployment of the Viper sniper detection and counterfire system and several improvements that were incorporated after a review of comments from users of the fielded systems. The Viper sensor was flown aboard a T-34 aircraft and the Naval Research Laboratory (NRL) Sparrow unmanned aerial vehicle (UAV). Infrared (IR) and visible video sequences were recorded for p...

Preface These are notes of a series of lectures on sieves, presented during the Special Activity in Analytic Number Theory, at the Max-Planck Institute for Mathematics in Bonn, during the period January–June 2002. The notes were taken by Boris Moroz, and it is a pleasure to thank him for writing them up in the current form. In addition, thanks are due to the institute for its hospitality and fi...

The Dirac Hamiltonian with the Aharonov-Bohm potential provides an example of a nonFredholm operator for which all spectral asymmetry comes entirely from the continuous spectrum. In this case one finds that the use of standard definitions of the resolvent regularized, the heat kernel regularized, and the Witten indices misses the contribution coming from the continuous spectrum and gives vanish...

Using the photonic analogue of the Korringa-Kohn-Rostocker (KKR) method, the spectrum of electromagnetic waves in a three-dimensional fcc lattice of homogeneous dielectric spheres with various dielectric contrast is analyzed. We confirm the main features of the spectrum obtained by the plane wave method, namely that for a sufficiently high dielectric contrast a full gap opens in the spectrum be...

In the case of electromagnetic waves it is necessary to distinguish between inward and outward on-shell integral equations. Both kinds of equation are derived. A correct implementation of the photonic KKR method then requires the inward equations and it follows directly from them. A derivation of the KKR method from a variational principle is also outlined. Rather surprisingly, the variational ...