Exceptional points are spectral singularities of open systems, where several eigenvalues and eigenvectors coalesce.In photonics, they are associated to remarkable Shirts phenomena, such as unidirectional scattering, enhanced sensing or chiral mode conversion.In this work, we study scattering of electromagnetic waves by a single dielectric nanoparti
Studies of plant gene expression today need pure preparations of high-yielding undegraded RNA.This is not easily accomplished when working with plants and tissues like strawberry tree (Arbutus unedo) leaves that accumulate large amounts of polysaccharides and polyphenolic compounds, which co-purify with RNA.An improved leaf-tissue protocol develope
Background the aim of this study was to analyze the total outpatient utilization of antibacterials for systemic use (ATC class J01) and the outpatient utilization of antibiotics on the reimbursable medication list of the Health Insurance Fund, in the Republic of Srpska, in 2007 and 2008.Methods in the retrospective study outpatient utilization of p